1. Department of Chemistry, G.C.G.-11, Chandigarh, 160 011, India
2. Department of Chemistry, D. A. V. College, Sector-10, Chandigarh, 160 011, India
3. Department of Chemistry and Centre of Advanced Studies in Chemistry, Punjab University, Chandigarh, 160 014, India
4. A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of the Russian Academy of Sciences, 1 Favorsky St., Irkutsk, 664033, Russia