A large number of Co-picoline-chlorides were prepared from different reaction media by changing the Co: picoline molar ratio.A new solid-gas phase method is described to prepare ternary mixed Co-picoline complexes containing different picolines.According to the thermal and spectral investigations the ligand chemisorption from the vapour phase depends on the stability of the solid complex and the complex formation ability of the ligand in the gas phase.
Abstract The thermal behaviour of transition-metal halide complexes formed with picoline was studied by derivatograph. The thermal decomposition of the complexes can take place either in molten or in solid phase in several steps. The mechanism of the step-wise reaction was also investigated.