Ahmet Tutar1, Yavuz Taskesenligil, Osman akmak, Riza Abbasoglu, Metin Balci. 1. Department of Chemistry, Faculty of Art and Sciences, Atatürk University, 25240 Erzurum, Turkey, Department of Chemistry, Faculty of Art and Sciences, Gaziosmanpasa University,Tokat, Turkey, and Department of Chemistry, Faculty of Art and Sciences, Karadeniz Technical University Trabzon, Turkey.