SOME 1ST ROW TRANSITION-METAL COMPLEXES OF NICOTINAMIDE AND NICOTINIC-ACID

Some complexes of the chlorides and bromides of manganese(II), iron(II), cobalt(II), nickel(II) and copper(II) with nicotinamide and nicotinic acid have been prepared. These complexes have stoichiometry ML2X2 where M is a metal ion, L is an organic ligand and X is a halide ion. Spectral and magnetic properties indicate that these compounds have octahedral polymeric structures. The decomposition of the complexes was studied by thermogravimetry and differential thermal analysis. In only one instance was a decomposition product of the formula MLX2 obtained. Its structure was also octahedral. © 1979 Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest.