6533b86dfe1ef96bd12c93d2
RESEARCH PRODUCT
Simultaneous substitution of bridging acetate groups and reversible RhC bond cleavage in [Rh2(O2CCH3)3-{(C6H4)PPh2}(HO2CCH3)2] in the presence of CF3CO2H. Crystal structure of [Rh2(O2CCF3)3-{(C6H4)PPh2}(HO2CCF3)2]
Santiago García-grandaPascual LahuertaJulio LatorreMercedes SanaúEduardo PerisM. Angeles Ubedasubject
StereochemistryOrganic ChemistryBridging ligandCrystal structureBiochemistryInorganic ChemistryBond lengthchemistry.chemical_compoundCrystallographychemistryElectrophileMaterials ChemistryTrifluoroacetic acidCarboxylatePhysical and Theoretical ChemistryTriphenylphosphineBond cleavagedescription
Abstract The reaction of the monometallated compound [Rh2(O2CCH3)3 {(C6H4)PPh2}(HO2CCH3)2] (1) with CF3CO2H at room temperature yields [Rh2(O2CCF3)3{(C6H4)PPh2}(HO2CCF3)2] (3) as the only isolable product. Compound 3 has been characterized by X-ray methods. 3 crystallizes in the space group P21 / n. It contains three trifluoroacetate groups bridging a Rh4+2 unit with a RhRh bond distance of 2.438(1) Ă; the fourth bridging ligand is a triphenylphosphine metallated at one of the ortho positions. Two molecules of trifluoroacetic acid occupy the axial coordination positions. In addition to the substitution of acetate groups, reversible electrophilic RhC bond activation is observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-02-01 | Journal of Organometallic Chemistry |