Question

1) Help me naming this complex compounds. Thank You in advance.
[CoCl2(NH3)4]NO2
[Cu(NH3)4]2+[PtCl4]2-
[CoCl(NH3)4(NO2)]Cl
[Co(N3)(NH3)5]SO4
2) What are ambidentate ligands? Give Examples.

Answer 1

Answer on Question#37708-Chemistry-Inorganic Chemistry

Questions

1) Help me naming this complex compounds. Thank You in advance.

$$[\mathrm{CoCl_2(NH_3)_4}]NO_2$$ $$[\mathrm{Cu(NH_3)_4}]^{2+}[\mathrm{PtCl_4}]^{2-}$$ $$[\mathrm{CoCl(NH_3)_4(NO_2)}]\mathrm{Cl}$$ $$[\mathrm{Co(N_3)(NH_3)_5}]SO_4$$

2) What are ambidentate ligands? Give Examples.

Answers

1)

$$[\mathrm{CoCl_2(NH_3)_4}]NO_2 \text{ – tetraamminedichlorocobalt(III) nitrite}$$ $$[\mathrm{Cu(NH_3)_4}]^{2+}[\mathrm{PtCl_4}]^{2-} \text{ – tetraamminecopper(II) tetrachloroplatinate(II)}$$ $$[\mathrm{CoCl(NH_3)_4(NO_2)}]\mathrm{Cl} \text{ – tetraamminechloronitrocobalt(III) chloride (if } NO_2 \text{ group is attached to the central atom by } N(O_2N^-)) \text{ or tetraamminechloronitritocobalt(III) chloride (if } NO_2 \text{ group is attached to the central atom by } O(ONO^-))$$ $$[\mathrm{Co(N_3)(NH_3)_5}]SO_4 \text{ – pentaammineazidocobalt(III) sulphate}$$

2)

The ambidentate ligands are ligands, which can attach to the central atom in two places but not both.

For example, nitrite ion ($NO_2^-$) is ambidentate ligand, because it can be attached either by N atom or by O.

Another examples of ambidentate ligands are:

- sulphite ($SO_3^{2-}$)

- thiocyanate ($SCN^-$) – isothiocyanate ($NCS^-$)

- selenocyanate ($SeCN^-$) – isoselenocyanate ($NCSe^-$)