The oxidation state in low-valent beryllium and magnesium compounds
Entidad
UAM. Departamento de QuímicaEditor
Royal Society of ChemistryFecha de edición
2022-05-09Cita
10.1039/d2sc01401g
Chemical Science 13.22 (2022): 6583 - 6591
ISSN
2041-6520 (print); 2041-6539 (online)DOI
10.1039/d2sc01401gProyecto
info:eu-repo/grantAgreement/EC/H2020/805113/ERC//MultiBD-CHALLENGE; Gobierno de España. PGC2018-098212-B-C22; Gobierno de España. PGC2018-094644-BC21Versión del editor
https://doi.org/10.1039/d2sc01401gMaterias
QuímicaDerechos
© 2022 The Author(s)Resumen
Low-valent group 2 (E = Be and Mg) stabilized compounds have been long synthetically pursued. Here we discuss the electronic structure of a series of Lewis base-stabilized Be and Mg compounds. Despite the accepted zero(0) oxidation state nature of the group 2 elements of some recent experimentally accomplished species, the analysis of multireference wavefunctions provides compelling evidence for a strong diradical character with an oxidation state of +2. Thus, we elaborate on the distinction between a description as a donor-acceptor interaction L(0) ⇆ E(0) ⇄ L(0) and the internally oxidized situation, better interpreted as a diradical L(−1) → E(+2) ← L(−1) species. The experimentally accomplished examples rely on the strengthened bonds by increasing the π-acidity of the ligand; avoiding this interaction could lead to an unprecedented low-oxidation state
Lista de ficheros
Google Scholar:Gimferrer, Martí
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Danés, Sergi
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Vos Esteban, Eva
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Yildiz, Cem B.
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Corral Pérez, Inés
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Jana, Anukul
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Salvador, Pedro
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Andrada, Diego M.
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