METALLOLIGANDS .2. STUDIES ON SOME HOMO HETERO TRINUCLEAR TRANSITION-METAL COMPLEXES OF -1,12-DIOXO-6,7-DIPHENYL-1,3,5,7,9,11-DODECAHEXANE (TTDD) WITH NICKEL(II), COBALT(II) AND COPPER(II)/

A new series of homo/hetero trinuclear complexes of the type [M Cu M ( TTDB)(2)X(2)(H2O)(4)]; where M = nickel(II), cobalt(II) and copper(II) , X = Cl-, Br- and NO3- and TTDD = a-1,3,10,12-tetramethyl-1,12-dioxo- 6,7-diphenyl-1, ,3,5,7,9,11-dodecahexene have been prepared in a stepw ise reaction from the precursor copper bis(benzil dihydrazone) complex es. They have been characterised-on the basis of elemental analysis, s pectral and magnetic properties, conductivity measurements and thermal analyses. All the complexes contain coordinated water and are non-ele ctrolytes. An octahedral environment around the metal centre is propos ed. Several spectral parameters have also been calculated. The complex es are screened as possible fungicides.