Heterogeneous reactions of solid nickel(II) complexes. XVIII

Abstract

The stoichiometry of thermal decomposition was studied for the following compounds:Ni(NCS)2(2-Mepy) 2 (I), (Me --methyl, py --pyridine), Ni(NCS)2(2-Etpy) 2(11) (Et=ethyl),The release of volatile ligands 2-Rpy is a one-step process for complexes I, II, III and IV, while for V and VI it is a two-step process, Ni(NCS)2(2-NH2py) ! (VII) being formed as an intermediate complex. It was found that complexes I and I I are square-planar; the others exhibited pseudo-octahedral geometry. The differences in stereochemistry of the above complexes are explained by the different electronic properties of 2-Rpy.

Synthesis and thermal behaviour of 4,4′-bipyridyl and 2,4′bipyridyl complexes of Co(II), Ni(II) and Cu(II) thiocyanates

“…The conditions of thermal decomposition of thiocyanato complexes of Co(II), Ni(II) and Cu(II) with various organic N-donors have been studied by many authors [1][2][3][4][5][6][7][8][9][10]. The synthesis and physico-chemical properties (except the thermal behaviour) of thiocyanato complexes of these metals have been studied intensively, but only with 2,2'-bipyridyl (2-bipy) and other amines [I 1 -15].…”