1. PG & Research Department of Chemistry, Pachaiyappa’s College (Affiliated to University of Madras), Chennai, Tamil Nadu, India
2. PG & Research Department of Chemistry, Ethiraj College for Women, Chennai, Tamil Nadu, India
3. Department of Chemistry, Birla Institute of Technology and Science (BITS), Pilani – K. K. Birla Goa Campus, Zuarinagar, Goa, India