A Stable Singlet Biradicaloid Siladicarbene: (L:)2Si

A trapped silicon atom: The compound (L:)2Si with low‐valent silicon was synthesized from its dichloride biradical precursor (L:)2SiCl2 by reduction with KC8. Theoretical analysis suggest that there are two donor–acceptor σ bonds L:→Si←:L. There is one σ lone‐pair orbital at Si and one π orbital whi...

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Veröffentlicht in:	Angewandte Chemie International Edition 2013-03, Vol.52 (10), p.2963-2967
Hauptverfasser:	Mondal, Kartik Chandra, Roesky, Herbert W., Schwarzer, Martin C., Frenking, Gernot, Niepötter, Benedikt, Wolf, Hilke, Herbst-Irmer, Regine, Stalke, Dietmar
Format:	Artikel
Sprache:	eng
Schlagworte:	biradicals DFT calculation low oxidation state silicon X-ray structure
Online-Zugang:	Volltext
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Zusammenfassung:	A trapped silicon atom: The compound (L:)2Si with low‐valent silicon was synthesized from its dichloride biradical precursor (L:)2SiCl2 by reduction with KC8. Theoretical analysis suggest that there are two donor–acceptor σ bonds L:→Si←:L. There is one σ lone‐pair orbital at Si and one π orbital which features significant π‐back‐donation L:←Si→:L giving short SiC bonds.
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.201208307