1. Department of Chemistry University College of Science University of Calcutta 92, A. P. C. Road Kolkata 700 009 India
2. Department of Chemistry Taki Government College Taki, Hasnabad West Bengal 743429 India
3. Instituto de Ciencia Molecular (ICMol) Universitat de València c/ Catedrático José Beltrán 2 46980 Paterna València Spain
4. Rani Rashmoni Green University Tarakeswar, Hooghly 712419 West Bengal India