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Title

Preparation and structure of alkylidene−osmium and hydride−alkylidyne−osmium complexes containing an n-heterocyclic carbene ligand

AuthorsCastarlenas, Ricardo CSIC ORCID; Esteruelas, Miguel A. CSIC ORCID; Oñate, Enrique CSIC ORCID
Issue Date15-Mar-2007
PublisherAmerican Chemical Society
CitationOrganometallics 26(8): 2129–2132 (2007)
AbstractThe complex [(η6-p-cymene)OsCl(CHPh)(IPr)]OTf (1) releases the arene in acetonitrile at 40 °C. The resulting 12-valence-electron metallic fragment is trapped by the solvent to afford the tris(solvento) compound [OsCl(CHPh)(NCCH3)3(IPr)]OTf (2), which reacts with AgOTf in acetonitrile at room temperature to give the tetrakis(solvento) derivative [Os(CHPh)(NCCH3)4(IPr)](OTf)2 (3). In dichloromethane at 40 °C, the treatment of 1 with triisopropylphosphine and triphenylphosphine yields the unsaturated five-coordinate mixed phosphine−NHC hydride−alkylidyne−osmium species [OsHCl(CPh)(IPr)(PR3)]OTf (R = iPr (4), Ph (5)).
Description4 pages, 3 figures.
Publisher version (URL)http://dx.doi.org/10.1021/om070065b
URIhttp://hdl.handle.net/10261/19444
DOI10.1021/om070065b
Appears in Collections:(ICMA) Artículos

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