1. Dipartimento di Chimica, Università della Basilicata, Via N. Sauro 85, 85100 Potenza, Italy, Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, Ruder Boskovic Institute, Bijenicka 54, 10002, Zagreb, Croatia, and PLIVA Research Institute, Baruna Filipovica 25, 10000 Zagreb, Croatia