BIOCHEMICAL-STUDIES ON BIOLOGICALLY-ACTIVE THIO-LIGANDS BENZOTHIAZOLINES AND THEIR MANGANESE(II) COMPLEXES

The coordination behaviour of benzothiazolines having the donor group arc NS towards manganese(II) has been studied. The unimolar and bimola r reactions of hydrated manganese acetate with monobasic bidentate ben zothiazolines resulted in the formation of coloured solids which have been characterised by elemental analysis, molecular weight determinati ons conductance and magnetic measurements. The infrared, electronic an d electron spin resonance spectral studies indicate a high spin tetrah edral geometry for the resulting complexes. All the ligands and their corresponding complexes have been screened for their fungicidal and ba ctericidal activity.