Polymerisation of bis(trichlorophenolato)tri(pyridine)nickel and bis (trihalophenolato)di(pyridine)nickel (II) complexes in solid state

The synthesis of five-coordinated bis(trihalophenolato)tri (pyridine)nickel (II) and four-coordinated his (trihalophenolato)di(pyridine) nickel(II) co mplexes from an aqueous solution and their characterisation by FT-IR, X-ray , DSC and elemental analysis is described. The thermal polymerisation of th ese complexes was carried out in the solid state and in the melt. Structura l analyses were performed using H-1 NMRI C-13 NMR and FT-IR spectroscopic a nalyses. T(g)s were determined by differential thermal analysis and the mol ecular weights by viscometric method. (C) 2000 Elsevier Science Ltd. All ri ghts reserved.