1. Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad44000, Pakistan
2. Faculty of Engineering and Environment, Northumbria University, TyneNE1 8ST, U.K.
3. School of Engineering, Newcastle University, Newcastle Upon TyneNE1 7RU, U.K.
4. Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore54792, Pakistan
5. Department of Chemistry, The University of Lahore, Lahore54810, Pakistan
6. Chemistry Department, College of Science, King Saud University, Riyadh11451, Saudi Arabia