1. H. E. J. Research Institute of Chemistry
2. International Center for Chemical and Biological Sciences
3. University of Karachi
4. Karachi-75270
5. Pakistan
6. Department of Chemistry
7. COMSATS Institute of Information Technology
8. Abbottabad
9. Pakistan 22060
10. Forman Christian College
11. A Chartered University
12. Lahore
13. Institute of Chemical Sciences
14. Bahauddin Zakariya University
15. Multan
16. Leibniz-Institut für Katalyse e. V. an der Universität Rostock
17. 18059 Rostock
18. Germany
19. Department of Physical Chemistry
20. University of Rostock