1. Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
2. Department of Chemistry, University of Agriculture, 38000 Faisalabad, Pakistan
3. Department of Basic Sciences & Humanities, UET (Lahore) Faisalabad Campus, 38000 Faisalabad, Pakistan
4. Department of Chemistry, College of Science, University of Bahrain, Sakhir P.O.
Box 32038, Bahrain
5. Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, Alexandria 21526, Egypt