1. Department of Chemistry University of North Bengal Darjeeling‐734013 India
2. Department of Pharmaceutical Technology Anna University BIT Campus Thiruchirappalli India
3. Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli PO Mohali Punjab 140306 India
4. Department of Chemistry Narendrapur Ramakrishna Mission Residential College Kolkata 700103 India
5. Department of Chemistry Dinabandhu Andrews College Kolkata 700084 India