1. Department of Organic Chemistry; Kaunas University of Technology; Radvilėnų pl. 19 LT-50254 Kaunas Lithuania
2. Department of Physical and Inorganic Chemistry; Kaunas University of Technology; Radvilėnų pl. 19 LT-50254 Kaunas Lithuania
3. Laboratory of Physical Organic Chemistry; Latvian Institute of Organic Synthesis; Aizkraukles 21 1006 Riga Latvia