1. Department of Chemistry; Istanbul Technical University, Maslak; Istanbul 34469 Turkey
2. Department Chemie-Biologie; Universität Siegen; 57068 Siegen Germany
3. Department of Chemical Engineering; Marmara University, Kadikoy; Istanbul 34722 Turkey
4. Chemistry Group Laboratories; TUBITAK-UME; PO Box 54, Gebze Kocaeli 41471 Turkey