**Author details**

Palash Mandal1,2, Uttam Das3 , Kamalendu Dey1† and Saikat Sarkar<sup>4</sup> \*

1 Department of Chemistry, University of Kalyani, Kalyani, West Bengal, India

2 Lalgopal High (H.S.) School, Ranaghat, West Bengal, India

3 Department of Chemistry, Kalyani Government Engineering College, Kalyani, West Bengal, India

4 Department of Chemistry, Chakdaha College, Chakdaha, West Bengal, India

\*Address all correspondence to: saikat\_s@rediffmail.com

† Prof. Kamalendu Dey expired on September 01, 2019.

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