Concept explainers
(a)
Interpretation:
The Lewis acid and Lewis base needs to be identified in the reaction of ethylenediamine with
Concept introduction:
The molecules which donate the electrons are known as Lewis bases while the molecules which accept the electrons are known as Lewis acids.
(b)
Interpretation:
The ligands and donor atoms are to be identified.
Concept introduction:
Ligand can be defined as the ion and molecule which have the tendency to donate the electrons to the central atom or ion.
(c)
Interpretation:
The coordination number and geometry of the metal present in the complex are to be determined.
Concept introduction:
The coordination number can be defined as the number of ligands attached to the central atom by coordinate bonds.
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CHEMISTRY-TEXT
- Platinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forward(a) Draw a Lewis dot and cross structure (including any lone pairs) for a NBr3 molecule and determine the shape of the molecule and number of valence electrons. (b) Six ammonia ligands form a complex ion with Co²+. What is the overall charge of the complex ion? Write the formula for the complex ion. What is the coordination number of the complex ion? Explain how ammonia ligands form a complex ion with Co²+? What is the geometry of the complex ion? Would you expect the complex to be coloured? Explain why? i. ii. iii. iv. V. vi.arrow_forwardThe self exchange electron-transfer reaction between [Co(en)3]3+ and [Co(en)3]2+ is rather slow. Explain this observation on the basis of d-orbital occupations.arrow_forward
- Write the hybridization, shape and magnetic character of [Fe(CN)6]4-.arrow_forwardName the compounds (a) [Mo(NH3)3Br3]NO3,(b) (NH4)2[CuBr4]. (c) Write the formula for sodium diaquabis(oxalato)ruthenate(III).arrow_forwardPredict the products of each of the following reactions and then balance the chemical equations.(a) Fe is heated in an atmosphere of steam.(b) NaOH is added to a solution of Fe(NO3)3.(c) FeSO4 is added to an acidic solution of KMnO4.(d) Fe is added to a dilute solution of H2SO4.(e) A solution of Fe(NO3)2 and HNO3 is allowed to stand in air.(f) FeCO3 is added to a solution of HClO4.(g) Fe is heated in air.arrow_forward
- (a) Draw the electronic configuration of [NiCl6]3. (b) Determine whether its paramagnetic or diamagnetic. (c) What is expected to happen to the color if the ligand is replaced by carbonyl?arrow_forwardThe compound Cr(en)2(OH)2Cl has been prepared in several isomeric forms: Isomer A is optically inactive and undergoes no reaction with either AgNO3 or en. Isomer B is optically inactive and reacts with AgNO3 to form a white precipitate, but does not react with en. Isomer C is optically active and reacts both with en and AgNO3. Assuming the coordination number of chromium is 6, identify each of the three isomers by name and draw each of the structures.Hint: For the en ligand think about what angle the donor atoms form with the metal ion.arrow_forward(a) A complex containing three pyridine and three ammonia ligands bound to a Ni(II) ion was found to have C3v symmetry. Draw and name the complex. (b) Describe the advantages of molecular orbital theory over Lewis models to describe diatomic species. (c) [Ni(II)Br4]2- is a tetrahedral complex while [Ni(II)(CN)4]2− is square-planar. Explain the reasons for the different coordination geometries in these two species.arrow_forward
- The cobalt carbonyl complex, Co2(CO)8, undergoes an oxidation with hydrogen gas to form a monomeric metal hydride product, HCo(CO)4. The resulting complex could have one of three possible structures, so an infrared spectrum was obtained. If the spectrum has 12 observable bands overall, what is the likely structure?arrow_forwardProvide the name and identify the oxidation state, coordination number, and the molecular geometry of [Fe(H20)6]3+.arrow_forwardName each of the compounds or ions given. (a) [Co(en)2(NO2)Cl]+(b) [Co(en)2Cl2]+(c) [Pt(NH3)2Cl4](d) [Cr(en)3]3+(e) [Pt(NH3)2Cl2]arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning