Connect for Chemistry
Connect for Chemistry
13th Edition
ISBN: 9781260161854
Author: Raymond Chang, Jason Overby
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 23.5, Problem 4PE
Interpretation Introduction

Interpretation:

The number of unpaired electrons in [Mn(H2O)6]2+ has to be determined. Provided that H2O is a weak field ligand.

Concept Introduction:

Strong field ligands:

  • Gives larger splitting.
  • So, splittingenergyΔo will be large.
  • As a consequence electrons do not get transmitted to the higher energy level due to the large energy gap in between. So, remains paired up in the lower energy level.
  • Thus, results in low-spin complexes.

Weak field ligands:

  • Gives smaller splitting.
  • So, splittingenergyΔo will be small.
  • As a consequence electrons will easily get transmitted to the higher energy level due to the small energy gap in between. So, remains unpaired by occupying the higher energy level.
  • Thus, results in high-spin complexes.

Ligand field splitting:

When ligands approach the central metal atom then the field strength of the ligand splits the outermost valence d orbitals of the central metal atom into two set of orbitals such as t2g and eg orbitals. The energy gap between two set of t2g and eg orbitals will be more or less based on the extent of splitting which in turn is based on the strength of the ligands. This phenomenon is known as Ligand field splitting.

The following diagram shows the splitting in the octahedral complexes:

Connect for Chemistry, Chapter 23.5, Problem 4PE

Splitting energy is the energy between t2g and eg orbitals. The splitting energy distinguishes the energy of t2g and eg orbitals. t2g orbitals are the lower energy orbitals whereas eg orbitals are the higher energy orbitals. Splitting energy is represented as Δo .

Pairing energy is the energy required to pair up electrons in an orbital. It is represented as Π.

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Chapter 23 Solutions

Connect for Chemistry

Ch. 23.5 - Determine the number of unpaired electrons in the...Ch. 23 - What distinguishes a transition metal from a...Ch. 23 - Why is zinc not considered a transition metal?Ch. 23 - Explain why atomic radii decrease very gradually...Ch. 23 - Without referring to the text, write the...Ch. 23 - Write the electron configurations of the following...Ch. 23 - Why do transition metals have more oxidation...Ch. 23 - Prob. 23.7QPCh. 23 - Prob. 23.8QPCh. 23 - Define the following terms: coordination compound,...Ch. 23 - Describe the interaction between a donor atom and...Ch. 23 - Prob. 23.11QPCh. 23 - Prob. 23.12QPCh. 23 - Prob. 23.13QPCh. 23 - Prob. 23.14QPCh. 23 - Prob. 23.15QPCh. 23 - What are the systematic names for the following...Ch. 23 - Prob. 23.17QPCh. 23 - Prob. 23.18QPCh. 23 - Define the following terms: stereoisomers,...Ch. 23 - Prob. 23.20QPCh. 23 - Prob. 23.21QPCh. 23 - Prob. 23.22QPCh. 23 - Prob. 23.23QPCh. 23 - Prob. 23.24QPCh. 23 - Draw structures of all the geometric and optical...Ch. 23 - Prob. 23.26QPCh. 23 - Briefly describe crystal field theory.Ch. 23 - Prob. 23.28QPCh. 23 - What is the origin of color in a coordination...Ch. 23 - Prob. 23.30QPCh. 23 - Prob. 23.31QPCh. 23 - Prob. 23.32QPCh. 23 - Prob. 23.33QPCh. 23 - Prob. 23.34QPCh. 23 - Prob. 23.35QPCh. 23 - The absorption maximum for the complex ion...Ch. 23 - Prob. 23.37QPCh. 23 - A solution made by dissolving 0.875 g of...Ch. 23 - Prob. 23.39QPCh. 23 - Prob. 23.40QPCh. 23 - Prob. 23.41QPCh. 23 - The [Fe(CN)6]3 complex is more labile than the...Ch. 23 - Aqueous copper(II) sulfate solution is blue in...Ch. 23 - When aqueous potassium cyanide is added to a...Ch. 23 - A concentrated aqueous copper(II) chloride...Ch. 23 - Prob. 23.46QPCh. 23 - As we read across the first-row transition metals...Ch. 23 - Prob. 23.48QPCh. 23 - Prob. 23.49QPCh. 23 - Prob. 23.50QPCh. 23 - Prob. 23.51QPCh. 23 - Chemical analysis shows that hemoglobin contains...Ch. 23 - Explain the following facts: (a) Copper and iron...Ch. 23 - A student in 1895 prepared three coordination...Ch. 23 - Prob. 23.55QPCh. 23 - From the standard reduction potentials listed in...Ch. 23 - Using the standard reduction potentials listed in...Ch. 23 - The Co2+-porphyrin complex is more stable than the...Ch. 23 - Prob. 23.59QPCh. 23 - Prob. 23.60QPCh. 23 - Hydrated Mn2+ ions are practically colorless (see...Ch. 23 - Which of the following hydrated cations are...Ch. 23 - Prob. 23.63QPCh. 23 - Prob. 23.64QPCh. 23 - Prob. 23.65QPCh. 23 - Prob. 23.66QPCh. 23 - The compound 1,1,1-trifluoroacetylacetone (tfa) is...Ch. 23 - Prob. 23.68QPCh. 23 - Prob. 23.69QPCh. 23 - Prob. 23.70QPCh. 23 - Prob. 23.71QPCh. 23 - Commercial silver-plating operations frequently...Ch. 23 - Draw qualitative diagrams for the crystal field...Ch. 23 - (a) The free Cu(I) ion is unstable in solution and...Ch. 23 - Prob. 23.75QPCh. 23 - Prob. 23.76QP
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