Bojan Kozlevčar, Nina Lah, Daniel Žlindra, Ivan Leban, Primož Šegedin
Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, P.O. Box 537, SI-1001 Ljubljana, Slovenia

Abstract
Two monomeric and two dimeric copper(II) benzoate and acetate coordination compounds with 2-aminopyridine were synthesized. The crystal structures of benzoate compounds were determined by X-ray diffraction analysis. The monomeric benzoate form [Cu(O2CC6H5)2(2apy)2] (2apy = 2-aminopyridine) is composed of trans oriented ligands around central copper(II) atom, where benzoates act as asymmetrical chelates (Cu – O 1.97 and 2.65 Ĺ). On the other hand, dimeric form [Cu2(O2CC6H5)4(2apy)2] reveals paddle - wheel type structure where 2-aminopyridine acts as axial ligand via pyridine nitrogen atom. All compounds were characterized by standard physico-chemical methods and tested for their fungal mycelial growth retardation activity for wood decay fungi Trametes versicolor and Antrodia vaillantii.