Abstract Heteroligand complexes of copper (II) were obtained as a result of the reaction of Cu (II) mono (o-hydroxybenzoate)(monohydrate) with 8~ hydroxyquinoline (HOx), o- aminophenol (NHzPh) and 2, 2'-dipyridyl (2, 2'-dipy). The mixture ofthe mono compound with: Cu (II) di (o—aminobenzoate) or Cu (lI) di (0-hydroxybenzaldoximate) were obtained by the reaction with av aminobenaoic acid (HzA) and o—hydroxybenzaldoxime (HQSalox) ...