1. Faculty of Chemistry; University of Wroclaw; 14 F. Joliot-Curie Str. 50-383 Wroclaw Poland
2. Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska str. 64 Kyiv 01601 Ukraine
3. Departamento de Química Fundamental; Universidade Federal de Pernambuco; Cidade Universitária Recife-PE 50740-560 Brazil