1. College
of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People’s Republic of China
2. College
of Science, Inner Mongolia Agricultural University, Hohhot 010018, People’s Republic of China
3. Département
de Chimie, Faculté Des Sciences (FDS), Université de Lomé (UL), Lome BP 1515, Togo
4. College
of Chemistry, Jilin University, Changchun 130021, People’s Republic of China