1. Chemistry Department, Faculty of Science, Minia University, El-Minia, Egypt
2. Theoretical and Applied Chemistry Unit (TACU), Chemistry Department, Tanta University, Tanta, Egypt
3. Institute of Organic Chemistry, Karlsruhe Institute of Technology, Karlsruhe, Germany
4. Institute of Biological and Chemical Systems (IBCS-FMS), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Karlsruhe, Germany