作者:Makeba B. Murphy-Jolly、Lesley C. Lewis、Andrew J. M. Caffyn
DOI:10.1039/b507752d
日期:——
Tris(perfluoroalkyl)phosphines, of interest as tunable alternatives to the carbon monoxide ligand, can be synthesised by the nucleophile mediated reaction of perfluoroalkyltrimethylsilanes with triphenylphosphite; the method can be extended to diphosphines.
Volatile Methylplatinum Complexes – Formation and Reactions in Anhydrous HF
作者:Roland Friedemann、Konrad Seppelt
DOI:10.1002/ejic.201201104
日期:2013.3
[(CO)2Pt(CH3)2], [(PF3)2Pt(CH3)2], and [(CF3)2PC2H4P(CH3)2Pt(CH3)2] [dfmpe = (CF3)2PC2H4P(CF3)2] are obtained by ligand exchange reactions. The thermal stability of the complexes increases in the given sequence, whereas their volatility decreases. Demethylation reactions with anhydrous HF cleave one methyl group. The addition of AsF5 and SbF5 often cleaves both methyl groups. The resulting L2Pt2+ compounds
The preparation and properties of some diphosphines R2PCH2CH2PR2(R = alkyl or aryl) and of their rhenium(I) dinitrogen derivatives
作者:Joseph Chatt、Wasif Hussain、G. Jeffery Leigh、Hapipah Mohd. Ali、Christopher J. Picket、Douglas A. Rankin
DOI:10.1039/dt9850001131
日期:——
The synthesis of a range of diphosphines R2PCH2CH2PR2 from Cl2PCH2CH2PCl2 is described. The properties of a series of complexes [ReCl(N2)(R2PCH2CH2PR2)2] derived from them are discussed. The relationship between the values of E½ox and ν(N2) for the complexes suggests that electron-withdrawing substituents on the diphosphine upset the usual balance of σ and π effects in rhenium–dinitrogen bonding.