1. Department of Chemical Sciences, Faculty of Science and Arts; Jordan University of Science and Technology; PO Box 3030 Irbid 22110 Jordan
2. Department of Basic Medical Sciences, Faculty of Medicine; Yarmouk University; Irbid Jordan
3. Department of Chemistry and Chemical Technology; Tafila Technical University; Jordan
4. Department of Chemistry, Molecular Catalysis; Technische Universität München; Lichtenbergstrasse 4 D-85747 Garching bei München Germany