[1] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia
[2] Univ Alexandria, Fac Sci, Dept Chem, Alexandria 21321, Egypt
[3] King Saud Univ, Coll Pharm, Dept Pharmaceut Chem, Riyadh 11451, Saudi Arabia
[4] Univ Sains Malaysia, Sch Phys, Xray Crystallog Unit, George Town 11800, Penang, Malaysia