Experimental and quantum-chemical studies of anabasine complexes with copper(II) and zinc(II) ions

Anabasine copper(II) and zinc(II) complexes have been studied using experimental methods and quantum-chemical studies. Preferred coordination centers and possible structures of the complexes have been determined. It has been revealed, that the main coordination center for anabasine complexes with both Cu(II) and Zn(II) ions is the piperidine nitrogen atom, while in zinc complexes also the nitrogen atom from the pyridine residue of anabasine is engaged to some small degree. In both systems investigated preferable formation of hydroxo-complexes was observed.