Carbene‐Stabilized Disilicon as a Silicon‐Transfer Agent: Synthesis of a Dianionic Silicon Tris(dithiolene) Complex

Reaction of carbene‐stabilized disilicon (1) with the lithium‐based dithiolene radical (2.) affords the first dianionic silicon tris(dithiolene) complex (3). Notably, the formation of 3 represents the unprecedented utilization of carbene‐stabilized disilicon (1) as a silicon‐transfer agent. The natu...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-06, Vol.59 (23), p.8864-8867
Main Authors: Wang, Yuzhong, Tope, Cynthia A., Xie, Yaoming, Wei, Pingrong, Urbauer, Jeffrey L., Schaefer, Henry F., Robinson, Gregory H.
Format: Article
Language:English
Subjects:
carbenes
dithiolenes
hypervalent compounds
Lithium
Magnetic resonance spectroscopy
NMR
NMR spectroscopy
Nuclear magnetic resonance
radicals
Silicon
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Summary:Reaction of carbene‐stabilized disilicon (1) with the lithium‐based dithiolene radical (2.) affords the first dianionic silicon tris(dithiolene) complex (3). Notably, the formation of 3 represents the unprecedented utilization of carbene‐stabilized disilicon (1) as a silicon‐transfer agent. The nature of 3 was probed by multinuclear NMR spectroscopy, single‐crystal X‐ray diffraction, and DFT computations. Transfer market: The first six‐coordinate dianionic silicon tris(dithiolene) complex (see structure: purple Si, green S, blue N) was synthesized by utilizing carbene‐stabilized disilicon as a silicon‐transfer agent.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201916395