1. Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar-388120, India
2. Department of Chemistry, Natubhai V. Patel College of Pure and Applied Sciences, Vallabh Vidyanagar- 388120, India
3. Department of Chemistry, Shree A.N. Patel P.G. Institute of Science and Research, Anand-388001, India