[(1,2-bis(diisopropylphosphino)ethane)Rh]2(μ-Si(CH3)(C6H5))2 | 221391-31-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: [(1,2-bis(diisopropylphosphino)ethane)Rh]2(μ-Si(CH3)(C6H5))2
• CAS: 221391-31-7；221528-15-0
• 化学式: C₄₂H₈₀P₄Rh₂Si₂
• 分子量: 970.974
• InChiKey: KRUJROWCCXMGMK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  13.29
• 重原子数：
  50.0
• 可旋转键数：
  10.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  [Rh(1,2-bis(diisopropylphosphino)ethane)]2(μ-H)(μ-η(2)-HSiMe2) 、 甲基苯基硅烷 以 正己烷 为溶剂， 以65%的产率得到[(1,2-bis(diisopropylphosphino)ethane)Rh]2(μ-Si(CH3)(C6H5))2
  参考文献：
  名称：

  Dimeric Rhodium μ-Silylene and μ-η²-Silyl Complexes:  Catalytic Silicon−Silicon Bond Formation and X-ray Structures of [{Prⁱ₂PCH₂CH₂PPrⁱ₂}Rh]₂(μ-SiRR‘)₂ (R = R‘ = Ph and R = Me, R‘ = Ph) and [{Prⁱ₂PCH₂CH₂PPrⁱ₂}Rh(H)]₂(μ-η²-H−SiMe₂)₂

  摘要：

  The stoichiometric and catalytic reactions of secondary silanes with the rhodium hydride bridged dimer [(dippe)Rh](2)(mu-H)(2) (1; dippe = 1,2-bis(diisopropylphosphino)ethane) are described. The reaction of 1 with Ph2SiH2 results in the formation of the bis(mu-silylene) complex [(dippe)Rh](2)(mu-SiPh2)(2) (2a); a similar reaction ensues upon addition of MePhSiH2 or Me(p)TolSiH(2) ((P)Tol =p-tolyl) to 1 except that the bis(silylene) complexes exist as a mixture of cis and trans stereoisomers. Dimethylsilane reacts with 1 to generate the dinuclear complex [(dippe)Rh(H)](2)(mu-eta(2)-SiMe2)(2) (4d). The hydride dimer acts as a catalyst precursor for the dimerization of excess Ph2SiH2 to tetraphenyldisilane (Ph2SiHSiHPh2). A catalytic cycle is proposed that consists of dinuclear intermediates.

  DOI：

  10.1021/om980651s