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Positively charged heteroboranes: Synthesis and reactivity

Authors: Němec Vlastimil | Vrána Jan | Holub Josef | Samsonov Maksim Andreevich | Růžička Aleš

Year: 2025

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Positively charged heteroboranes: Synthesis and reactivity	The polyhedral boranes and heteroboranes appear almost exclusively in neutral or anionic forms, while the cationic bear the positive charge at exoskeletal heteroatoms. The cationic boranes remained elusive until 2020, when Spokoyny published closo-B12(O-3-methylbutyl)12+ radical cation, which decomposes at - 30 °C. In 2021, we published the first thermally robust cationic heteroboranes derived from the electron-rich 10-vertex carboranes supported by N-heterocyclic carbenes. In this work, the synthesis of new positively charged heteroboranes will be presented. The reactivity of electron-rich carboranes can be modified by the change of the donor base (various N-heterocyclic or mesoionic carbenes), which has crutial impact of their reactivity. New types of positively charged carboranes were prepared by the reaction with these clusters. These compounds are also suitable for the coordination of metal cations ranging from lithium to bismuth including also transition metal compounds.