1. Department of Chemistry, Government General Degree College, Kharagpur-II, Ambigeria, Madpur, Paschim Medinipur-721149, West Bengal, India
2. Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
3. Departament de Química, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
4. Rani Rashmoni Green University, Hooghly 712410, Tarakeswar, West Bengal, India