1. Department of Chemistry, Graduate
School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
2. CNRS, LCC, Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099,
F-31077 Toulouse Cedex 4, France
3. Institute of Physical and Organic
Chemistry, Southern Federal University,
194/2 Stachki ave., Rostov-on-Don 344090, Russian Federation