[chloro(2-(fluoroboryl)biphenyl-C(2'),B)tris(trimethylphosphine)iridium(IV)][BPh4] | 161660-68-0

• 英文名称: [chloro(2-(fluoroboryl)biphenyl-C(2'),B)tris(trimethylphosphine)iridium(IV)][BPh4]
• CAS: 161660-68-0
• 化学式: C₂₁H₃₅BClFIrP₃*C₂₄H₂₀B
• 分子量: 957.146
• InChiKey: XYCINUCEJVNFRY-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  chloro(biphenyl-2,2'-diyl)tris(triphenylphosphine)iridium(III) 、 四苯硼钠 、 nitrosonium tetrafluoroborate 以 二氯甲烷 为溶剂， 以46%的产率得到[chloro(2-(fluoroboryl)biphenyl-C(2'),B)tris(trimethylphosphine)iridium(IV)][BPh4]
  参考文献：
  名称：

  Geometrically Distorted and Redox-Active Organometallic Iridium Complexes Containing Biphenyl-2,2'-diyl

  摘要：

  C-C bond cleavage of biphenylene by an Ir(I) complex via an oxidation addition generates the biph (=biphenyl-2,2'-diyl) ligand. The resulting compound is treated with PPh(3) to give [Ir(PPh(3))(2)(biph)Cl], having a 16 e five-coordinate structure lying between Y and T geometries, being closer to a Y, which is rationalized on theoretical grounds. The complex [Ir(PMe(3))(3)-(biph)Cl] can be oxidized quasi-reversibly to an Ir(TV) species. Oxidation with NOBF4 gives the unusual Ir(IV) boryl compound [Ir(PMe(3))(3)(biphBF)Cl](+), which has been isolated and structurally characterized. Extended Huckel (EHT) calculations suggest that the easy oxidation of the {Ir(biph)} system is associated with the presence of a high-lying Ir d(yz) orbital. The {Ir(biph)} fragment is remarkably stable; only Br-2 is able to cleave the Ir-C bonds.

  DOI：

  10.1021/om00003a018