Synthesis, characterization, and thermodynamics of some new unsymmetrical Co(III) Schiff base complexes derived from 2,3-diaminopyridine
作者:Mozaffar Asadi、Susan Torabi、Khosro Mohammadi
DOI:10.1007/s00706-013-1045-0
日期:2013.11
Some new Schiff bases derived from 2,3-diaminopyridine and their new Co(III) complexes were synthesized and characterized. The formation constants of the Co(III) complexes vary according to the following trend: 5-MeO > 5-H > 5-Br and 5-MeO > 3-MeO > 4-MeO. For a given donor, the order of formation constants according to the axial ligand is PBu3 > PPh2Me. The binding trend of the donors toward a given cobalt(III) Schiff base complex is as follows: benzylamine > n-butylamine > sec-butylamine > tert-butylamine; Im > 2-MeIm > 2-EtIm > BzIm; and PBu3 > PPh2Me.