1. Department of Chemistry; Bacha Khan University; Charsadda Pakistan
2. Department of Chemistry; Abdul Wali Khan University; Mardan Pakistan
3. Department of Biological Sciences and Chemistry, College of Arts and Sciences; University of Nizwa; Sultanate of Oman
4. H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences; University of Karachi; Karachi 75270 Pakistan
5. PCSIR Laboratories Complex, Karachi; Shahrah-e-Dr. Salimuzzaman Siddiqui; Karachi 75280 Pakistan