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Elucidating the Binding Mode of Sulfur- and Selenium-Based Cationic Chalcogen-Bond Donors.
Akbaba, Sercan; Steinke, Tim; Vogel, Lukas; Engelage, Elric; Erdelyi, Mate; Huber, Stefan M.
Afiliación
  • Akbaba S; Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
  • Steinke T; Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
  • Vogel L; Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
  • Engelage E; Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
  • Erdelyi M; Department of Chemistry - BMC, Uppsala University, Husargatan 3, SE-752 37, Uppsala, Sweden.
  • Huber SM; Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
Chemistry ; 30(33): e202400608, 2024 Jun 12.
Article en En | MEDLINE | ID: mdl-38604947
ABSTRACT
For a comparison of the interaction modes of various chalcogen-bond donors, 2-chalcogeno-imidazolium salts have been designed, synthesized, and studied by single crystal X-ray diffraction, solution NMR and DFT as well as for their ability to act as activators in an SN1-type substitution reaction. Their interaction modes in solution were elucidated based on NMR diffusion and chemical shift perturbation experiments, which were supported by DFT-calculations. Our finding is that going from lighter to the heavier chalcogens, hydrogen bonding plays a less, while chalcogen bonding an increasingly important role for the coordination of anions. Anion-π interactions also show importance, especially for the sulfur and selenium derivatives.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemistry Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania