A Dirhoda‐Heterocyclic Carbene

The linear μ‐carbido complex [Rh2(μ‐C)Cl2(dppm)2] (dppm=bis(diphenylphosphino)methane) reacts with dimethylacetylene dicarboxylate (DMAD) to afford [Rh2(μ‐C)(μ‐DMAD)Cl2(dppm)2], which features a bent RhCRh linkage (124.7°) that might be described as a dirhoda‐heterocyclic carbene, as demonstrated by...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-03, Vol.59 (11), p.4274-4277
Main Authors: Barnett, Harrison J., Hill, Anthony F.
Format: Article
Language:English
Subjects:
carbide complexes
carbodicarbenes
dirhoda-heterocyclic carbenes
metalla-aromaticity
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Summary:The linear μ‐carbido complex [Rh2(μ‐C)Cl2(dppm)2] (dppm=bis(diphenylphosphino)methane) reacts with dimethylacetylene dicarboxylate (DMAD) to afford [Rh2(μ‐C)(μ‐DMAD)Cl2(dppm)2], which features a bent RhCRh linkage (124.7°) that might be described as a dirhoda‐heterocyclic carbene, as demonstrated by coordination to further metal centers. The first example of an isolable bent μ‐carbido complex, that behaves in a manner reminiscent of a heterocyclic carbene is described.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201912650