Synthesis and characterisation of cationic bis(cyclopentadienyl)tungsten(IV) complexes containing alkyl, chloride and hydride ligands
作者:Adrian J. Carmichael、Andrew McCamley
DOI:10.1039/dt9950003125
日期:——
The cationic complexes [W(η-C5H5)2R(NCMe)][PF6](R = Et or H), [W(η-C5H5)2Me(NCR′)][BF4] and [W(η-C5H5)2Cl(NCR′)][BF4](R′= Me or Ph) have been prepared and characterised by 1H and 13C NMR and IR spectroscopy, and by X-ray crystallography in the case of [W(η-C5H5)2Et(NCMe)][PF6]. The complex [W(η-C5H5)2H(NCMe)][PF6] is unstable in solution at room temperature, decomposing slowly to yield the dinuclear
该阳离子配合物[W(η-C 5 H ^ 5)2 R(NCMe)] [PF 6 ](R =的Et或H),[W(η-C 5 H ^ 5)2我(NCR')] [BF 4 ]和[W(η-C 5 H ^ 5)2 Cl(上NCR')] [BF 4 ](R'= Me或PH)已经制备和表征通过1 H和13 C NMR和IR光谱,并通过在的情况下,X射线晶体学[W(η-C 5 H ^ 5)2的Et(NCMe)] [PF 6 ]。络合物[W(η-C 5 H ^ 5)2H(NCMe)] [PF 6 ]是不稳定的在室温下溶液中,慢慢地分解,得到双核C-H活化产物[W(η-C 5 H ^ 5)(μ-η 1:η 5 -C 5 H 4)(NCMe)} 2 ] [PF 6 ] 2,如通过NMR光谱法和X射线晶体学所证实的。