1. Department of Chemistry, Burdwan University, Golapbug, Burdwan 713104, West Bengal, India
2. Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
3. Department of Chemistry, Sambhu Nath College, Labpur, Birbhum 731303, West Bengal, India
4. Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India
5. Department of Chemistry, University of Manchester, Manchester M13 9PL, United Kingdom