[1] Islamia Univ Bahawalpur, Dept Chem, Bahawalpur 63000, Pakistan
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China
[3] Univ Cordoba, Dept, E-14014 Cordoba, Spain
[4] Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China