Page 1107 - Chemistry--atom first

Chapter 19 | Transition Metals and Coordination Chemistry 1097
28. Give the coordination number for each metal ion in the following compounds:
(a) [Co(CO3)3]3− (note that CO32− is bidentate in this complex)
(b) [Cu(NH3)4]2+
(c) [Co(NH3)4Br2]2(SO4)3
(d) [Pt(NH3)4][PtCl4]
(e) [Cr(en)3](NO3)3
(f) [Pd(NH3)2Br2] (square planar)
(g) K3[Cu(Cl)5]
(h) [Zn(NH3)2Cl2]
29. Sketch the structures of the following complexes. Indicate any cis, trans, and optical isomers.
(a) [Pt(H2O)2Br2] (square planar)
(b) [Pt(NH3)(py)(Cl)(Br)] (square planar, py = pyridine, C5H5N)
(c) [Zn(NH3)3Cl]+ (tetrahedral)
(d) [Pt(NH3)3Cl]+ (square planar)
(e) [Ni(H2O)4Cl2]
(f) [Co(C2O4)2Cl2]3− (note that is the bidentate oxalate ion,
30. Draw diagrams for any cis, trans, and optical isomers that could exist for the following (en is ethylenediamine):
(a) [Co(en)2(NO2)Cl]+ (b) [Co(en)2Cl2]+
(c) [Pt(NH3)2Cl4]
(d) [Cr(en)3]3+
(e) [Pt(NH3)2Cl2]
31. Name each of the compounds or ions given in Exercise 19.28, including the oxidation state of the metal.
32. Name each of the compounds or ions given in Exercise 19.30.
33. Specify whether the following complexes have isomers.
(a) tetrahedral [Ni(CO)2(Cl)2]
(b) trigonal bipyramidal [Mn(CO)4NO]
(c) [Pt(en)2Cl2]Cl2
34. Predict whether the carbonate ligand will coordinate to a metal center as a monodentate, bidentate, or tridentate ligand.
35. Draw the geometric, linkage, and ionization isomers for [CoCl5CN][CN].
19.3 Spectroscopic and Magnetic Properties of Coordination Compounds
36. Determine the number of unpaired electrons expected for [Fe(NO2)6]3−and for [FeF6]3− in terms of crystal field theory.
37. Draw the crystal field diagrams for [Fe(NO2)6]4− and [FeF6]3−. State whether each complex is high spin or low spin, paramagnetic or diamagnetic, and compare Δoct to P for each complex.
38. Give the oxidation state of the metal, number of d electrons, and the number of unpaired electrons predicted for [Co(NH3)6]Cl3.