1. 1Department of Chemistry, Acharya Nagarjuna University, Guntur-522510, India 2Department of Chemistry, Government College (A), Rajamahendravaram-533105, India
2. Department of Engineering Chemistry, S.R.K.R. Engineering College (A), Bhimavaram-534204, India
3. Department of Chemistry, Ch. S.D. St. Theresa’s College for Women (A), Eluru-534003, India
4. Department of Chemistry, S.R.R. & C.V.R. Government Degree College (A), Vijayawada-520010, India