Affiliation: | a Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India b Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India c School of Chemistry, The University of Reading, P.O. Box 224, Whiteknights, Reading RG6 6AD, UK |