1. Department of Chemistry of Macromolecular Compounds Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
2. Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
3. Enamine Ltd. (www.enamine.net), Kyiv, Ukraine
4. V. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, Kyiv, Ukraine