1. Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, AUC Avenue, New Cairo, P.O. Box 74, Cairo 11835, Egypt
2. Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
3. Department of Chemistry, College of Science, University of Bahrain, Sakhir 32038, Bahrain
4. Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria 21934, Egypt