1. Department of Chemistry, GITAM School of Science, GITAM Deemed to be University, Hyderabad, Telangana 502329, India
2. Department of Chemistry, School of Applied and Life Sciences, Uttaranchal University, Arcadia Grant, P.O. Chandanwari, Premnagar, Dehradun, Uttarakhand 248007, India
3. School of Chemistry & Physics, College of Agriculture, Engineering & Science, WestvilleCampus, University of KwaZulu-Natal, P Bag X 54001, Durban 4000, South Africa