This book describes the synthesis process of Macrocyclic complexes of Pb (II) having Thaiaza Potential donors in 22-28 member rings its derivatives Alkylene dithiophosphate, Dialkyle dithio phosphate derivatives. There is also Structural Elucidation and Antimicrobial activity of Macrocyclic complexes of Pb (II) having Thaiaza Potential donors in 22-28 member rings its derivatives Alkylene dithiophosphate, Dialkyle dithio phosphate.