[W3S4Br3(dmpe)3]PF6 | 142291-71-2

• 英文名称: [W3S4Br3(dmpe)3]PF6
• 英文别名: [W3S4Br3(1,2-bis(dimethylphosphanyl)ethane)3]PF6
• CAS: 142291-71-2
• 化学式: C₁₈H₄₈Br₃P₆S₄W₃*F₆P
• 分子量: 1514.91
• InChiKey: QSZLTZWHYSNXHF-UHFFFAOYSA-K

反应信息

• 作为反应物：
  描述：

  bis(1,5-cyclooctadiene)nickel (0) 、 [W3S4Br3(dmpe)3]PF6 、 乙腈 以 乙腈 为溶剂， 以61%的产率得到[W3NiS4Br3(1,2-bis(dimethylphosphanyl)ethane)3(CH3CN)]PF6
  参考文献：
  名称：

  Heterobimetallic cuboidal [Mo3NiS4] and [W3NiS4] cluster diphosphane complexes as molecular models in hydrodesulfurization catalysis

  摘要：

  Treatment of the cationic, incomplete cubane-type sulfido clusters [M3S4X3(diphos)(3)](+) (M = Mo, W; X = Cl, Br; diphos = dmpe (1,2-bis(dimethylphosphanyl)ethane), dppe (1,2-bis(diphenylphosphanyl)ethane)) with an excess of [Ni(cod)(2)] (cod = 1,5-cyclooctadiene) afforded the heterobimetallic single cube clusters [M3NiS4X3(diphos)(3)(CH3CN)](+) as PF6- salts. The acetonitrile ligand could be substituted by pyridine, tetrahydrothiophene and carbon monoxide in CH2Cl2 at room temperature, modelling the catalytic sites of heterogeneous Ni-MoS2 hydrodesulfurization catalysts. X-ray crystal structure analyses of [MO3NiS4Cl3(dmpe)(3)(CH3CN)]BPh4 and [W3NiS4Br3(dmpe)(3)(CO)]PF6 are reported. Electrochemical studies by cyclic voltammetry reported for all heterobimetallic [M3NiS4] clusters show two quasireversible oxidation processes, the molybdenum complexes being ca. 0.2 V more difficult to oxidize than the tungsten analogues. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2005.04.004