Kseniya V. Belyaeva, Ludmila V. Andriyankova, Lina P. Nikitina, Andrei V. Ivanov, Andrei V. Afonin, Igor’ A. Ushakov, Anastasiya G. Mal’kina, Al’bina I. Mikhaleva, Boris A. Trofimov* A. E. Favorsky Irkutsk Institute of Chemistry,
Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russian Federation Fax: +7(3952)419346; e-Mail: boris_trofimov@irioch.irk.ru;