1Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
2Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
3Chemistry Department, K.L.D.A.V (P.G.) College, Roorkee, India
4School of Studies in Chemistry, Jiwaji University, Gwalior, MP, India