1. Applied Chemistry Research Centre, PCSIR Laboratories Complex, Lahore 54600 Pakistan
2. Department of Chemistry, Kinnaird College for Women, Lahore 54000, Pakistan
3. College of Earth & Environmental Sciences, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590 Pakistan
4. University College of Pharmacy, University of Punjab, Lahore 54000, Pakistan
5. Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
6. Chemistry Department, Loughborough University, Loughborough LE11 3TU, U.K.