The thermal decomposition of group iib metal halide complexes: Part II. N,N,N′,N′-tetramethylethylenediamine and 1,2-diphenylphosphinoethane complexes

The preparation and pyrolysis procedures for 1/1 complexes MX₂·L (where M = Group IIB metal, XCl, Br or I and LN,N,N′,N′-tetramethylethylene-diamine (TMED) or 1,2-diphenylphosphinoethane (DPE))is reported. The decomposition of the cadmium chloride and bromide TMED complexes afford intermediates of varying stability. From far infrared spectrophotometry we conclude that the chloride intermediate is a four coordinate polymeric complex. Differential scanning calorimetry has been used to determine selected latent heats of fusion.