1. Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan
2. Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
3. Advanced Science Research Center (ASRC) of Graduate Center, Department of Physics in City University of New York, CUNY, New York, NY 10031, USA