The second author of the article should read as V. Shanmukha Kumar Jagarlapudi.

The second affilation should read as Department of Chemistry, Koneru Lakshmaiah Deemed to be University.

Acknowledgments should be as follows: The authors are grateful to the Department of Chemistry, Sreenidhi Institute of Science and Technology, Hyderabad for providing Laboratory facilities and one of the author, A. Kumar, is grateful to Department of Chemistry, Koneru Lakshmaiah Deemed to be University, Andhra Pradesh for the support of this work.