Institution: | 1.Chemistry Department, Faculty of Science, Minia University, 61519, El-Minia, Egypt ;2.Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany ;3.Department of Chemistry, University of Helsinki, P.O. Box55, A. I. Virtasen Aukio 1, 00014, Helsinki, Finland ; |