Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 32, Pages 11780-11783Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja406799y
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Funding
- National Science Foundation [CHE-1265674]
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- NSF [CHE-0910552, MRI-0216275]
- Welch Foundation [A-0648]
- Direct For Mathematical & Physical Scien [1265674] Funding Source: National Science Foundation
- Division Of Chemistry [1265674] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0910552] Funding Source: National Science Foundation
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The first silylyne complex of a metal beyond group 6, [Cp*((Pr3P)-Pr-i)(H)Os Si(Trip)][HB(C6F5)(3)], was prepared by a new synthetic route involving hydride abstraction from silicon. NMR and DFT computations support the presence of a silylyne ligand, and NBO and ETS-NOCV analysis revealed the nature of this Os-Si interaction as a triple bond consisting of a covalent sigma bond and two strong pi back-donations. The discovery of this complex allowed observations of the first cycloadditions involving a silylyne complex, and terminal alkynes are shown to react via C-H bond additions across the Os Si bond.
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