Perrhenate and Pertechnetate Complexes of Dicationic Pyridinium-fused 1,2,4-Selenodiazoles Featuring Se⋯O Chalcogen Bonding and Anion⋯Anion Interactions

Coupling between 2-pyridylselenyl chloride and various cyanopyridinium salts resulted in the formation of dicationic pyridinium-fused 1,2,4-selenodiazoles. Novel bicyclic heterocycles are highly soluble in water and readily precipitate pertechnetate and perrhenate anions from aqueous media. All the novel compounds were comprehensively characterized using 1 H and 13 C NMR techniques, ESI-MS, and X-ray diffraction analysis (for eight compounds). Theoretical calculations have shown the intricate nature of chalcogen bonding (ChBs) and anion-π interactions across a series of compounds, each exhibiting unique bonding patterns and interaction energies. Compounds [1]H(ReO4)2 , [2]H(ReO4)2 , [3](ReO4), [2]H(TcO4)2 and [3](TcO4) displayed complex assemblies, highlighting the role of ion-pair interactions, bifurcated ChBs, and directional matere bonds.

Authors
Kazakova A.A. 1 , Kubasov A.S.2 , Chizhov A.O.3 , Novikov A.P. 4 , Volkov M.A.4 , Borisov A.V. 5 , Nenaidenko V.G. 6 , Dukhnovsky E.A. 1 , Bely A.E. 1 , Grishina M.M. 1 , Kritchenkov A.S. 7 , Gomila Rosa8 , Frontera Antonio8 , Tskhovrebov A.G. 1
Language
English
Pages
121929
Status
Published
Volume
563
Year
2024
Organizations
  • 1 Peoples' Friendship University of Russia
  • 2 Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
  • 3 Institute of Organic Chemistry of the Russian Academy of Sciences
  • 4 Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences
  • 5 Nizhny Novgorod State Technical University n.a. R.E. Alekseev
  • 6 Northern (Arctic) Federal University named after M.V. Lomonosov
  • 7 Institute of Technical Acoustics of National Academy of Sciences of Belarus
  • 8 University of the Balearic Islands
Date of creation
01.07.2024
Date of change
01.07.2024
Short link
https://repository.rudn.ru/en/records/article/record/108452/
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