Explain Nature of Coordination or Complex Compounds

Nature of coordination (or) complex compounds

(i) An anionic complex compound contains a complex anion and simple cation.

K4[Fe(CN)6] ↔ 4K+ (simple cation) + [Fe (CN)6]4- (complex anion)

(ii) A cationic complex contains complex cation and simple anion

[Co(NH3)6] Cl3 ↔ [Co(NH3)6]3+ (complex cation) + 3Cl (simple anion)

(iii) In the case of a complex compound, [Cr(NH3)6] [Co(CN)6], it gives both complex cation and complex anion

[Cr(NH3)6] [Co(CN)6] ↔ [Cr(NH3)6]3+ (complex cation) + [Co(CN)6]3- (complex anion)