| 192629-48-4

• CAS: 192629-48-4；192726-25-3；192726-26-4
• 化学式: C₃₄H₄₂Mo₂O₁₀P₄Pt
• 分子量: 1121.56
• InChiKey: PRORFZHEKRONRO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  顺-二氯双(三乙基膦)铂(II) 、 phenylphosphine pentacarbonylmolybdenum(0) 在 DBU 作用下， 以 四氢呋喃 为溶剂， 以24%的产率得到
  参考文献：
  名称：

  Substitution of chloride in [PtCl2(PET3)2] by the chiral anionic ligand [Mo(CO)5(PPhH)]− to give mixed platinum-molybdenum compounds and a 31P∗1H∗ NMR analysis of their fluxionality. X-ray crystal structure of [PtCl(PEt3)2 (μ-PPhH) ∗Mo(CO)5∗] and trans-[Pt(PEt3)2 (μ-PPH)2 ∗Mo(CO)5∗2]

  摘要：

  Deprotonation of the primary phosphine complex [Mo(CO)(5)(PPhH(2))] generated [Mo(CO)(5)(PPhH)](-), a chiral anionic ligand which reacted readily with cis- or trans-[PtCl2(PEt(3))(2)] via facile nucleophilic substitution of one or both chloride ligands to afford trans-[PtCl(PEt(3))(2)(mu-PPhH){Mo(CO)(5)}] (1) and cis- and trans-[Pt(PEt(3))(2)(mu-PPhH)(2){MO(CO)(5)}(2)] (2), respectively. These are rare examples of heterometallic complexes containing primary phosphido bridges, Compound 1 can be described either as the square-planar Pt-II complex with the anionic ligand PPhH{Mo(CO)(5)}(-) or as the Pt-Mo phosphido-bridged dimer trans- [PtCl(PEt(3))(2)(mu-PPhH){Mo(CO)(5)}]. As a phosphido-bridged heterobimetallic 1 possesses an exceptionally large Pt-P-Mo angle [120.9(1)degrees] reflecting the long Pt-Mo nonbonding interaction (4.5 Angstrom). Compound 2 can correspondingly be described either as a phosphido-bridged PtMo2 trimer or a square-planar arrangement of two neutral PEt(3) and two anionic PPhH {Mo(CO)(5)} ligands at Pt. The low-temperature P-31{H-1} NMR spectrum of 1 showed several ABXY spin systems together with their associated ABXYM (M = Pt-195) counterparts and variable-temperature studies revealed the dynamic interconversion of several rotametric isomers arising from restricted relation about the Pt-P mu bond. The P-31{H-1} NMR spectrum of trans-2 shows its two possible RR/SS and meso diastereoisomers, the latter existing in clearly identifiable rotameric forms which interconvert slowly at -75 degrees C. We note very different values between (2)J(P-P) and (1)J(Pt-195-P) for th, anionic ligands [PPhH{Mo(CO)(5)}](-) and PEt(3), unattributable to bond length variation but which must reflect reduced s-orbital contribution to the Pt-P bond of the anionic phosphines PPhH {Mo(CO)(5)}. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0277-5387(96)00403-2