91Ó°ÊÓ

Write the formula for (a) tetrachlorocthylenediaminecobaltate(III). (b) triaquatrifluorocobalt(III).

Write the name corresponding to cach formula. (a) \(\left[\mathrm{MnCl}_{4}\right]^{2-}\) (b) \(\mathrm{K}_{3}\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]\) (c) \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}(\mathrm{CN})_{2}\right]\)

Write the name corresponding to each formula. (a) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5}(\mathrm{OH})\right]^{2+}\) (b) \(\left[\mathrm{Mn}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]\)

Sketch the geometry of (a) \(c i s-\left[\mathrm{Cu}\left(\mathrm{H}_{2} \mathrm{O}\right)_{2} \mathrm{Br}_{4}\right]^{2-}\). (b) trans-[Ni(NH \(\left.\left._{3}\right)_{2}(\mathrm{en})_{2}\right]^{2+}\).

The acetylacetonate ion (acac) forms a complex with \(\mathrm{Co}^{3+}\). Sketch the geometry of \(\left[\mathrm{Co}(\mathrm{acac})_{3}\right]\)

Which of these octahedral coordination complexes can exhibit geometric isomerism? (a) \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3} \mathrm{Cl}_{3}\right]\) (b) \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)

Which of these octahedral coordination complexes can exhibit geometric isomerism? (a) \(\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right)_{2} \mathrm{Cl}_{2} \mathrm{Br}_{2}\right]\) (b) \(\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right)_{2} \mathrm{Cl}_{3} \mathrm{Br}\right]\)

Draw the possible geometric isomers, if any. (a) \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\) (b) \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right) \mathrm{Cl}_{3}\right]^{-}\) (c) \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3} \mathrm{Cl}_{3}\right]\) (d) \(\left[\mathrm{Co}(\mathrm{en})_{2}\left(\mathrm{NH}_{3}\right) \mathrm{Br}\right]^{2+}\)

Draw the possible geometric isomers, if any, of (a) \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\) (b) \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}(\mathrm{SCN}) \mathrm{Br}\right]\). (The \(\mathrm{S}\) in \(\mathrm{SCN}\) is bonded to \(\mathrm{Pt}^{2+}\).) (c) \(\left[\mathrm{Co}(\mathrm{en}) \mathrm{Cl}_{4}\right]^{-}\)

Draw the crystal-field splitting diagrams and put in the d electrons for these octahedral complexes. In those cases where they are possible, draw diagrams for both low-spin and high-spin cases. (a) \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}\) (b) \(\left[\mathrm{Mn}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}\) (c) \(\left[\mathrm{FeF}_{6}\right]^{\frac{3}{3}-}\) (d) \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)