1. Department of Chemistry, College of Science; Qassim University; KSA
2. Department of Chemistry, Faculty of Science; El-Menoufia University; Shebin El-Kom Egypt
3. Department of Biochemistry, College of Medicine; Qassim University; Saudia Arabia
4. Department of Chemistry, Faculty of Sciences and Arts, Khulais; University of Jeddah; Saudi Arabia
5. Inorganic Chemistry Department; National Research Centre; P.O. 12622, Elbehothe st., Dokki Cairo Egypt
6. Department of Chemistry, Faculty of Science; Ibb University; Ibb Yemen