1. Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar, 388 120 Gujarat, India
2. Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002 Gujarat, India
3. Indukaka Ipcowala Centre for Interdisciplinary Studies in Science & Technology (IICISST), Sardar Patel University, Vallabh Vidyanagar, 388 120 Gujarat, India