1. a Chemistry Department, Faculty of Science , El-Minia University , 61519 , El-Minia , Egypt
2. b Chemistry Department, College of Science , Al-Jouf University , Al-Jouf , Sakaka , Kingdom of Saudi Arabia
3. c Chemistry Department , 150w University Boulevard , Melbourne , FL , 32901 , USA
4. d Chemistry Department, Faculty of Science , El-Azhar University , Assiut , Egypt