A Stable N-Hetero-Rh-Metallacyclic Silylene.
Angew Chem Int Ed Engl
; 58(30): 10310-10314, 2019 Jul 22.
Article
em En
| MEDLINE
| ID: mdl-31132319
ABSTRACT
A cyclic (amino)metal-substituted dicoordinated silylene derivative has been synthesized and fully characterized. Of particular interest is that the N-hetero-RhI -metallacyclic silylene exhibits a distorted tetrahedral geometry around the rhodium atom and a considerably shortened Si-Rh bond (2.138â
Å) compared to classical Si-Rh single bonds (ca.â
2.30-2.35â
Å). A theoretical investigation reveals that the geometrical deviation around the rhodium center from the classical square-planar to a tetrahedral geometry increases the π-donating and σ-accepting character of the rhodium atom, thereby efficiently stabilizing the silylene moiety.
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MEDLINE
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En
Ano de publicação:
2019
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Article