1. Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
2. International Center for Chemical and Biological Sciences, H. E. J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
3. Department of Chemistry, The University of Lahore, Lahore, Pakistan
4. Department of Physics, Thal University Bhakkar, Bhakkar, 30000, Pakistan
5. Department of Chemistry, University of Gujrat, Gujrat, Pakistan
6. Department of Chemistry, Aliah University, New Town, Kolkata 700 156, India
7. Department of Physics, University of Sargodha, Sargodha-40100, Pakistan
8. Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia