1. Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
2. Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
3. Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3 Sesto Fiorentino, Florence, Italy