1. Department of Chemistry, The University of Burdwan, Burdwan, West Bengal 713104, India
2. Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India
3. Departamento de Química Inorgánica, Facultad de Química, Avda. Das Ciencias s/n, Santiago de Compostela 15782, Spain
4. Department of Zoology, The University of Burdwan, Burdwan, West Bengal 713104, India