New vic-dioxime ligands and their Cu-II, Co-III, Ni-II and VOIV complexes h
ave been prepared and characterized by elemental analyses, i.r. and u.v. sp
ectra, magnetic moments and molar conductance data. The Co-III complexes ar
e diamagnetic. The H-1- and C-13-n.m.r. and g.c./m.s. spectra of the vic-di
oxime ligands and their Co-III complexes were recorded. The compounds are a
ll non-electrolytes.