On 25 August - 1 September 2019, was held a European Symposium of Fluorine and Fluorubstituted Compounds at the brand new CEnT New Technologies Center in Warsaw. In addition to the number of participants from reputable institutions, the greatest attraction was a lecture by Nobel laureate for chemistry Roald Hoffmann (1937 Zloczow near Lwow), Professor Emeritus of Cornell University of NY. Professor Hoffmann (h index = 117), like many births in his time, spent several troublesome years (1941-1944) and after the war settled in the US (1949), where after graduating from Harvard University and graduating doctorate devoted to theoretical chemistry. For his contributions to the calculations concerning the reactivity and structure of inorganic and organic compounds, o.i. The extension of Hückel's method of interpreting molecular orbital, Woodward-Hoffman's rules for reaction mechanisms, was honored with the 1981 Nobel Chemistry Award together with Japanese scientist Kenichi Fukui. Currently, he actively cooperates with the symposium organizer group prof. Wojciech Grochal, whose external member is also Slovak scientist Marina Derszi.

There were also a short lecture by RNDr. Zity Tokárová, PhD. from the Department of Chemistry of the Faculty of Natural Sciences UCM and prof. Hoffman honored her with recognition for her presentation.