Affiliation: | 1. Department of Chemistry, KRK Govt. Degree College, Addanki, A.P., India;2. Department of Chemistry, Acharya Nagarjuna University, Nagarjunanagar, A.P., India;3. Department of Chemistry, Andhra Loyola College, Vijayawada, A.P., India;4. Department of Physics, KRK Govt. Degree College, Addanki, A.P., India;5. Department of Chemistry, Acharya Nagarjuna University, Nagarjunanagar, A.P., India |