1. Department of chemisty, Vignan’s Foundation for science, Technology & Research, Vadlamudi, Guntur, Andhra Pradesh -522213, India,
2. Department of Physics, P B Siddhartha College of Arts & Science, Vijayawada– 520010, Andhra Pradesh, India,ORCID:
3. Department of Chemistry, J.K.C.C, Acharya Nagarjuna University, Guntur-522006, AP, India,
4. Department of Chemistry, S.V. Arts (UG&PG) College, (T.T.D’S) Tirupathi, Andhra Pradesh, 517502, India,