1. Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer Distt., Rajasthan-305817, India
2. Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, 87 avenue du Dr A. Schweitzer, F-33600 Pessac, France
3. Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, PO Box 537, SI-1000 Ljubljana, Slovenia