For the complex [ C o F 6 ] 3 − , the following have to be determined – (a) Geometry of complex ion (b) Color absorption in whether red or blue (c) Whether high spin or low spin complex Concept Introduction: Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets. Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc. Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand. The ligands are arranged in increasing order of crystal field splitting they produce. I − < B r − < S 2 − < S C N − < C l − < N O 3 − < N 3 − < F − < O H − < C 2 O 4 2 − < H 2 O < N C S − < C H 3 C N < p y < N H 3 < e n < b i p y < p h e n < N O 2 − < P P h 3 < C N − < C O The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand. Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex . A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes. Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

Question

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Answer 1

Question

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

(c)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(c)

Expert Solution

Answer to Problem 22.82QP

The complex is high spin complex.

Explanation of Solution

Referring to spectrochemical series fluoro ligand is a weak ligand. Hence, it forms high spin complex. Therefore [CoF6]3− is high spin complex.

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LTS Solid: AT=Te-Ti Trial 1 Trial 2 Trial 3 Average ΔΗ Mass water, g 24.096 23.976 23.975 Moles of solid, mol 0.01763 001767 0101781 Temp. change, °C 2.9°C 11700 2.0°C Heat of reaction, J -292.37J -170.473 -193.26J AH, kJ/mole 16.58K 9.647 kJ 10.85 kr 16.58K59.64701 KJ mol 12.35k Minimum AS, J/mol K 41.582 mol-k Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn & Show your calculations for: AH in J and then in kJ/mole for Trial 1: qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J qsin = qrxn = 292.35 292.37J AH in J = 292.375 0.2923kJ 0.01763m01 =1.65×107 AH in kJ/mol = = 16.58K 0.01763mol mol qrx Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con Kelvin.) AS=AHIT (1.65×10(9.64×103) + (1.0 Jimai

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Answer 2

Question

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

(c)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(c)

Expert Solution

Answer to Problem 22.82QP

The complex is high spin complex.

Explanation of Solution

Referring to spectrochemical series fluoro ligand is a weak ligand. Hence, it forms high spin complex. Therefore [CoF6]3− is high spin complex.

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Answer 3

Question

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

(c)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(c)

Expert Solution

Answer to Problem 22.82QP

The complex is high spin complex.

Explanation of Solution

Referring to spectrochemical series fluoro ligand is a weak ligand. Hence, it forms high spin complex. Therefore [CoF6]3− is high spin complex.

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Answer 4

Question

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

(c)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(c)

Expert Solution

Answer to Problem 22.82QP

The complex is high spin complex.

Explanation of Solution

Referring to spectrochemical series fluoro ligand is a weak ligand. Hence, it forms high spin complex. Therefore [CoF6]3− is high spin complex.

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Answer 5

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

(c)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(c)

Expert Solution

Answer to Problem 22.82QP

The complex is high spin complex.

Explanation of Solution

Referring to spectrochemical series fluoro ligand is a weak ligand. Hence, it forms high spin complex. Therefore [CoF6]3− is high spin complex.

Answer 6

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

Answer 7

Chapter 22, Problem 22.82QP

(a)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

Answer 8

(a)

Expert Solution

Answer to Problem 22.82QP

The complex ion is octahedral in geometry.

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

Explanation of Solution

The complex ion [CoF6]3− has six fluoro ligands. Hence, the co-ordination number is six and so the geometry of the complex would be octahedral.

Answer 13

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.

Answer 14

(b)

Interpretation Introduction

Interpretation:

For the complex [CoF6]3− , the following have to be determined –

(a) Geometry of complex ion

(b) Color absorption in whether red or blue

(c) Whether high spin or low spin complex

Concept Introduction:

Complex compounds are primarily formed by transition elements which are d-block elements. A co-ordination compound is known as a complex compound is made of metal atom/ion and ligand(s). Ligands are considered as Lewis bases and the central metal atom is Lewis acid. Ligands donate a pair of electron to metal ion and establishes bonding with metal ion which is known as co-ordinate bond and hence these compounds are named as co-ordination compounds. The ligands represented inside the square brackets.

Complex compounds exist in following geometries - tetrahedral, square planar, octahedral etc.

Spectrochemical series refers to the arrangement of ligands with respect to crystal field splitting they cause in the d-orbitals of a metal ion. The ligand that causes larger splitting pattern is referred to as stronger ligand.

The ligands are arranged in increasing order of crystal field splitting they produce.

I−<Br−<S2−<SCN−<Cl−<NO3−<N3−<F−<OH−<C2O42−<H2O<NCS−<CH3CN<py<NH3<en<bipy<phen<NO2−<PPh3<CN−<CO

The ligand that causes larger crystal field splitting is strong ligand and the ligand that causes smaller splitting is termed as weak ligand.

Depending upon magnetic property Complexes are of two types - low spin complex and high spin complex. A complex is said to be low-spin if it doesn't have unpaired electrons whereas in high spin complex there will be presence of unpaired electrons. Stronger ligands pair the electrons and produce diamagnetic, low-spin complexes. Weaker ligands are incapable of pairing the electrons and form paramagnetic, high-spin complexes.

Almost all the Co-ordination compounds are colored compounds. Presence of unpaired electrons in a complex compound makes it colored as the unpaired electrons undergo transition from lower energy level to higher energy level. The color of the complex observed is complementary to the color absorbed in the wavelength region.

Answer 15

(b)

Expert Solution

Answer to Problem 22.82QP

The complex will absorb in red region.

Answer 16

(b)

Expert Solution

Answer 17

(b)

Expert Solution

Answer 18

Expert Solution

Answer 19

Explanation of Solution

The complex ion [CoF6]3− has fluoro ligands. As spectrochemical series indicates fluoro ligands as weak ligands, it has smaller crystal field splitting energy so that the complex containing fluoro ligands absorb in higher wavelength region which is red. Red color has greater wavelength than blue color.