1. Department of Chemistry; Faculty of Science and Letters; Istanbul Technical University; Maslak 34469 Istanbul Turkey
2. Department of Chemistry; Faculty of Engineering and Natural Sciences; Bursa Technical University; 16310 Bursa Turkey
3. Center of Excellence for Advanced Materials Research and Chemistry Department; Faculty of Science; King Abdulaziz University; P. O. Box 80203 Jeddah 21589 Saudi Arabia