Examples include rhodium complex, [(Ph3P)3RhCl], a
Wilkinson catalyst, is used for the hydrogenation of alkenes •
Articles can be electroplated with silver and gold much more
smoothly and evenly from solutions of the complexes, [Ag(CN)2]
–
and [Au(CN)2]
– than from a solution of simple metal ions •
In black and white photography, the developed film is fixed by
washing with hypo solution which dissolves the undecomposed
AgBr to form a complex ion, [Ag(S2O3)2]
3– •
There is growing interest in the use of chelate therapy in medicinal
chemistry