What is meant by stability of coordinate compound in solution? State the factors which govern stability of complexes.
Medicinal Chemistry: Many complex compounds are used in medicines. Some common examples are:
(i) Vitamin B12 used to prevent anaemia is a complex compound of cobalt.
(ii) The complex of calcium and EDTA is used in the treatment of lead poisoning. Inside the body calcium in the complex is replaced by lead. The more soluble lead – EDTA complex is eliminated in urine.
(iii) The platinum complex cis-[Pt(NH3)2Cl2] known as cis platin is used in the treatment of cancer.