1. Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
2. Department of Chemistry, Jadavpur University, Kolkata 700032, India
3. Department of Chemistry, Mrinalini Datta Mahavidyapith, Birati, Kolkata 700051, India
4. Department of Physics, Jadavpur University, Jadavpur, Kolkata 700 032, India
5. Division of Molecular Medicine, Bose Institute, Kolkata-700 056, India
6. Departament de Quimica, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
7. Department of Biotechnology, School of Science and Technology, The Neotia University, Diamond Harbour, West Bengal 743 368, India
8. Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741 246, India