1. Department of Chemistry, Andhra Loyola Institute of Engineering and Technology, Vijayawada, Andhra Pradesh, India;
2. Department of Chemistry, University of Basrah, Basrah, Iraq;
3. Department of Chemistry, University of the Western Cape, Bellville, Cape Town, South Africa;
4. Department of Chemistry, Bapatla Engineering College, Acharya Nagarjuna University Post Graduate Research Centre, Bapatla, Andhra Pradesh, India;
5. Department of Chemistry, B.M.S. College of Engineering, Bengaluru, Karnataka, India