1. Department of Chemistry
2. University of Calcutta
3. Kolkata 700 009
4. India
5. Department of Inorganic and Physical Chemistry
6. G.A. Razuvaev Institute of Organometallic Chemistry RAS
7. 603950 Nizhny Novgorod
8. Russian Federation
9. N.I. Lobachevsky Nizhny Novgorod State University
10. Institut fuer Physikalische und Theoretische Chemie
11. Technische Universitaet Graz
12. A-8010 Graz
13. Austria