26. Indicate the coordination number for the central metal atom in each of the followingcoordination compounds:(a) [Pt(H2O)2B12](b) [Pt(NH3)(py)(CI)(Br)] (py = pyridine, CSH&N)(c) [Zn(NH3)2C12](d) [Zn(NH3)(py)(CI)(Br)](e) [Ni(H2O);Cl2][Fe(en), (CN),]Gond- bonds(f)(en = ethylenediamine, C2H&N2)

Answer:- This question is answered by using the simple concept of calculation of oxidation state of…

26. Indicate the coordination number for the central metal atom in each of the following coordination compounds: (a) [Pt(H2O)2B12] Gond .. bonds, (a) [Pt(H;O);Br2] (b) [Pt(NH3)(py)(CI)(Br)] (py = pyridine, CSH3N) (c) [Zn(NH3)2C12] (d) [Zn(NH3)(py)(CI)(Br)] (e) [Ni(H2O)4C12] [Fe(en), (CN),] (en = ethylenediamine, C2H&N2) %3D

26. Indicate the coordination number for the central metal atom in each of the following coordination compounds: (a) [Pt(H2O)2B12] Gond .. bonds, (a) [Pt(H;O);Br2] (b) [Pt(NH3)(py)(CI)(Br)] (py = pyridine, CSH3N) (c) [Zn(NH3)2C12] (d) [Zn(NH3)(py)(CI)(Br)] (e) [Ni(H2O)4C12] [Fe(en), (CN),] (en = ethylenediamine, C2H&N2) %3D

General Chemistry - Standalone book (MindTap Course List)

11th Edition

ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter22: The Transition Elements And Coordination Compounds

Section: Chapter Questions

Problem 22.24QP

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Suppose that rather than reacting copper(II) with ammonia, you had reacted it with an ammonium salt, such as NH4Cl. Would the same coordination complex have formed? Why or why not? What product would have formed?
For each of the following polydentate ligands, determine (i)the maximum number of coordination sites that the ligandcan occupy on a single metal ion and (ii) the number andtype of donor atoms in the ligand: (a) ethylenediamine(en), (b) bipyridine (bipy), (c) the oxalate anion (C2O42-),(d) the 2- ion of the porphine molecule (Figure ),(e) [EDTA4]-.
In general, would you expect EDTA4- to coordinate to transition metal ions more or less strongly than ethylenediamine does? Justify your answer with a reason other than the different charges on the two ligands.
1) Why are lanthanide complexes always weak field in nature , second and third d-transition metal complexes are nearly always strong field cases , and first d-transition series metal complexes exhibit both weak and strong field cases? 2) Sketch the structure for the [PtCl3(H2C=CH2)]- anion and describe the platinum(II)-ethene bonding.
The mineral magnetite has the formula Fe3O4 and has an inverse spinel structure. In the unit cell, there are two Fe ions in octahedral sites and one Fe ion in a tetrahedral site. (i) Are the Fe ions in magnetite low-spin or high-spin? Explain your reasoning. (ii) Draw d-orbital splitting diagrams for Fe(III) in tetrahedral and octahedral ligand fields and hence deduce the CFSE in each case. (iii) On the basis of your answer to part (ii) above, do you expect Fe(III) to have a preference for tetrahedral or octahedral sites? Explain your answer. (iv) Draw d-orbital splitting diagrams for Fe(II) in tetrahedral and octahedral ligand fields and hence deduce the CFSE in each case. (v) Assuming that Δt ~ 4/9 Δo and using your answer to part (iv) above, deduce the CFSE of Fe(II) in a tetrahedral field in terms of Δo. Hence decide whether the tetrahedral site is occupied by Fe(II) or Fe(III), explaining your reasoning.
What are the coordination numbers of cobalt(III), plat-inum(II), and platinum(IV) in complexes?
Amines, NR3, are usually only weakly coordinating toward low valent metals. why is this so?Do you think that NF3would be abetter ligand for these metals? Discuss the factors involved.
Draw three coordination compounds with a coordination number greater than 4 and with three different tetradentate ligands: one with C3v symmetry, another Dh4 and another C2 (complete the coordination sphere with monodentate ligands of your choice). For each of them, describe the compound, indicate the oxidation number, the number of electrons and classify the ligand used.
Werner prepared two compounds by heating a solution of PtCl₂ with triethyl phosphine, P(C₂H₅)₃, which is an excellent ligand for Pt. The two compounds gave the same analysis: Pt,38.8%; Cl, 14.1%; C, 28.7%; P, 12.4%; and H, 6.02%. Writeformulas, structures, and systematic names for the two isomers
Are bipyridines (bipy) and analogous amines, phenanthroline (phen) and terpyridine (terpy) chelate ligands?Is there the possibility of the formation of complexes of these ligands with metals in a low oxidation state? Why?
Given the colors observed for VO43- (orthovanadate ion), CrO42- (chromate ion), and MnO4- (permanganate ion), what can you say about how the energy separation between the ligand orbitals and the empty d orbitals changes as a function of the oxidation state of the transition metal at the center of the tetrahedral anion?
Will methylamine (CH3NH2) be a monodentate or abidentate ligand? With which of its atoms will it bind to ametal ion?

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General Chemistry - Standalone book (MindTap Cour…

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ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning