STRUCTURAL AND THERMAL STUDIES OF THE CHLORO COMPLEXES OF COBALT, NICKEL AND COPPER WITH 1,6-HEXANEDIAMINE

The preparation and thermal analysis studies of the compounds produced by the reaction of 1,6-hexanediamine with the chlorides of cobalt, nickel and copper in ethanolic solution are reported. Spectral and magnetic studies show that the cobalt and nickel compounds have octahedral structures, whereas the copper compound has a tetragonal structure. The thermal analysis studies of the cobalt, nickel and copper compounds show that one or more intermediate compounds are formed in each case before the metal halide and metal oxide are produced.