Cr, Fe, Ni, Cu metal ion Chelates have been synthesized by reacting metal chloride with 2-(Cinnamyl)-4-bromo-6- methyl benzothiazolyl hydrazones. These metal ion chelates screened for their antibacterial, antifungal activity. The geometry of the metal chelates ion has been proposed. The ligand system coordinates with the metal ion in a bidentate manner through nitrogen atom of hydrazones.