1. Department of Chemistry, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440033, India
2. Department of Chemistry, Laxminarayan Innovation Technological University, Nagpur 440033, India
3. Gurunanak College of Pharmacy, Kamptee Road, Nari, Nagpur 440 026, M.S., India
4. P. G. Department of Chemistry, S. K. Porwal College Kamptee, Nagpur 441001, India