XXV International Symposium "Advances in the Chemistry of Heteroorganic Compounds" and XXII International Symposium on Selected Problems of Chemistry of Acyclic and Cyclic Heteroorganic Compounds, Łódź, 21-22 November, 2024 / organized by Jan Dlugosz University in Częstochowa, co-organized by Centre of Molecular and Macromolecular Studies. Polish Academy of Sciences, in cooperation with Czestochowa Branch. Polish Chemical Society, Faculty of Chemistry. University of Łódź.