| 词条 | Oxotrichlorobis(triphenylphosphine)rhenium(V) |
| 释义 |
| Watchedfields = changed | verifiedrevid = 430216986 | ImageFile = Oxotrichlorobis%28triphenylphosphine%29rhenium%28V%29.png | ImageSize = | IUPACName = Trichloridooxido |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 17442-18-1 |Section2={{Chembox Properties | Formula = ReOCl3(PPh3)2 | MolarMass = 833.15 g/mol | Appearance = yellow microcrystals | Density = | Solubility = not soluble in water | MeltingPtC = 205 | MeltingPt_notes = | BoilingPt = |Section3={{Chembox Hazards | ExternalSDS = | RPhrases = | SPhrases = }} Oxotrichlorobis(triphenylphosphine)rhenium(V) is the chemical compound with the formula ReOCl3(PPh3)2. This yellow, air-stable solid is a precursor to a variety of other rhenium complexes.[1] In this diamagnetic compound, Re has an octahedral coordination environment with one oxo, three chloro and two mutually trans triphenylphosphine ligands. The oxidation state of rhenium is +5 and its configuration is d2. SynthesisReOCl3(PPh3)2 is commercially available, but it is readily synthesized by reaction of perrhenic acid with triphenylphosphine in a mixture of hydrochloric acid and acetic acid. In this reaction, Re(VII) is reduced to Re(V), and triphenylphosphine is oxidized to its oxide. HReO4 + 3 HCl + 3 PPh3 → ReOCl3(PPh3)2 + Ph3PO + 2 H2O The required perrhenic acid solution can be prepared in situ from rhenium(VII) oxide. UsesReOCl3(PPh3)2 is a precursor to a variety of other oxo-, nitridio, and hydrido complexes. It converts to ReH7(PPh3)2 by a treatment with LiAlH4.[2] ReOCl3(PPh3)2 catalyzes the selective oxidation of secondary alcohols by DMSO, producing the corresponding ketals.[3] References1. ^{{cite journal | author = Johnson, N. P.; Lock, C. J. L.; Wilkinson, G. | title = Complexes Of Rhenium(V) | journal = Inorg. Synth. | year = 1967 | volume = 9 | pages = 145 | doi = 10.1002/9780470132401.ch39 | series = Inorganic Syntheses | isbn = 978-0-470-13240-1}} {{Rhenium compounds}}2. ^{{cite journal |author1=K. Abdur-Rashid |author2=A. J. Lough |author3=R. H. Morris |last-author-amp=yes | title = Intra- and inter-ion-pair protonic-hydridic bonding in polyhydridobis(phosphine)rhenates | journal = Canadian Journal of Chemistry | year = 2001 | volume = 79 | pages = 964 | doi = 10.1139/cjc-79-5-6-964 | issue = 5–6}} 3. ^Pombeiro, A. J. L.; Fatima, M.; Crabtree, R. H. "Technetium and Rhenium: Inorganic & Coordination Chemistry" Encyclopedia of Inorganic Chemistry. John Wiley & Sons: New York, 2006. {{doi|10.1002/0470862106.ia237}} 3 : Rhenium compounds|Chloro complexes|Triphenylphosphine complexes |
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