Affiliation: | 1. Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India;2. Vice-Chancellor, Aliah University, DN-18, 8th Floor, Sector V, Salt Lake, Kolkata 700 091, West Bengal, India;3. Department of Chemistry, Aligarh Muslim University, Aligarh, U.P. 202 002, India |