| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Synthesis and Characterization of the Trihalophosphine Compounds of Ruthenium [RuX2(η6-cymene)(PY3)] (X = Cl, Br, Y = F, Cl, Br) and the Related PF2(NMe2) and P(NMe2)3 Compounds; Multinuclear NMR Spectroscopy and the X-ray Single Crystal Structures of [RuBr2(η6-cymene)(PF3)], [RuBr2(η6-cymene)(PF2{NMe2})], and [RuI2(η6-cymene)(P{NMe2}3)]
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - Treatment of the dimers [RuX2(η6-cymene)]2 with PF3 in hot heptane produces the compounds [RuX2(η6-cymene)(PF3)] (X = Cl, Br, I) in good yield. Difluoro(dimethylamino)phosphine and tris(dimethylamino)phosphine react similarly to produce the compounds [RuX2(η6-cymene)(PF2{NMe2})] and [RuX2(η6-cymene)(P{NMe2}3)]. Reaction of the dimers [RuX2(η6-cymene)]2 with PCl3 and PBr3 proceeded with the production of mononuclear products which had undergone halogen exchange at ruthenium in some cases. 1H, 13C, 31P, and 19F NMR spectra have been obtained where appropriate together with (1H−1H) correlation spectroscopy (COSY) and (13C−1H)-HETCORR spectra of selected compounds. The variation of 1J(31P−19F) with the nature of the auxiliary ligand (X) in the PF3 and PF2(NMe2) complexes has been examined both experimentally and computationally using a natural localized molecular orbital-natural bond order approach. The single crystal X-ray structure of [RuBr2(η6-cymene)(PF3)] has been determined at 223 K and those of [RuBr2(η6-cymene)(PF2{NMe2})] and [RuI2(η6-cymene)(P{NMe2}3)] at 294 K.
- The preparation of trihalophosphine complexes of ruthenium has been achieved by bridge splitting reactions of dimeric precursors. Trifluorophosphine complexes have also been prepared by conversion of a ruthenium bound tris(dimethylamino)phosphine ligand with aqueous hexafluorophosphoric acid. Halogen exchange between ruthenium bonded halide ligands and phosphorus bound halides has also been observed. An experimental and computational analysis of the variation of 1J(PF) has been carried out for two series of compounds.
|
| Alternative Title
| - Trihalophosphine Complexes of Ruthenium
|
| is part of this journal
| |
