1. Electronic and Magnetic Division, Advanced Materials Department; Central Metallurgical Research & Development Institute (CMRDI); Helwan Cairo Egypt
2. Research Institute for Electronic Science; Hokkaido University; N21, W10, Kita-ku 001-0021 Sapporo Japan
3. Chemistry Department, Faculty of Science; Al-Azhar University; Nasr City Cairo Egypt
4. National Research Centre; Department of Organometallic & Organometalloid Chemistry; El Buhouth St, Dokki, Giza Cairo Egypt