Chalcogen-Nitrogen Bond: Insights into a Key Chemical Motif

Autor: Marco Bortoli, Andrea Madabeni, Pablo Andrei Nogara, Folorunsho B. Omage, Giovanni Ribaudo, Davide Zeppilli, Joao B. T. Rocha, Laura Orian
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Catalysts, Vol 11, Iss 1, p 114 (2021)
Druh dokumentu: article
ISSN: 2073-4344
DOI: 10.3390/catal11010114
Popis: Chalcogen-nitrogen chemistry deals with systems in which sulfur, selenium, or tellurium is linked to a nitrogen nucleus. This chemical motif is a key component of different functional structures, ranging from inorganic materials and polymers, to rationally designed catalysts, to bioinspired molecules and enzymes. The formation of a selenium–nitrogen bond, typically occurring upon condensation of an amine and the unstable selenenic acid, often leading to intramolecular cyclizations, and its disruption, mainly promoted by thiols, are rather common events in organic Se-catalyzed processes. In this work, focusing on examples taken from selenium organic chemistry and biochemistry, the selenium–nitrogen bond is described, and its strength and reactivity are quantified using accurate computational methods applied to model molecular systems. The intermediate strength of the Se–N bond, which can be tuned to necessity, gives rise to significant trends when comparing it to the stronger S– and weaker Te–N bonds, reaffirming also in this context the peculiar and valuable role of selenium in chemistry and life.
Databáze: Directory of Open Access Journals
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