[Mo(μ-TePh)(CO)3(P(i)Pr3)]2 | 927888-52-6

• 英文名称: [Mo(μ-TePh)(CO)3(P(i)Pr3)]2
• CAS: 927888-52-6
• 化学式: C₃₆H₅₂Mo₂O₆P₂Te₂
• 分子量: 1089.83
• InChiKey: HJLPCJQPQZSJCZ-UHFFFAOYSA-L

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：

  Mo(CO)3(P(i)Pr3)2 、 联苯二碲 以 甲苯 为溶剂， 生成 [Mo(μ-TePh)(CO)3(P(i)Pr3)]2
  参考文献：
  名称：

  Synthesis, Structure, and Thermochemistry of the Formation of the Metal−Metal Bonded Dimers [Mo(μ-TeAr)(CO)₃(PⁱP₃)]₂ (Ar = Phenyl, Naphthyl) by Phosphine Elimination from ^•Mo(TePh)(CO)₃(PⁱPr₃)₂

  摘要：

  The complexes ((TeAr)-Te-center dot)Mo(CO)(3)((PPr3)-Pr-i)(2) (Ar = phenyl, naphthyl; Pr-i = isopropyl) slowly eliminate (PPr3)-Pr-i at room temperature in a toluene solution to quantitatively form the dinuclear complexes [Mo(mu-TeAr)(CO)(3)((PPr3)-Pr-i)](2). The crystal structure of [Mo(mu-Te-naphthyl)(CO)(3)((PPr3)-Pr-i)](2) is reported and has a Mo-Mo distance of 3.2130 angstrom. The enthalpy of dimerization has been measured and is used to estimate a Mo-Mo bond strength on the order of 30 kcal mol(-1). Kinetic studies show the rate of formation of the dimeric chalcogen bridged complex is best fit by a rate law first order in ((TeAr)-Te-center dot)Mo(CO)(3)(P(i)Pr3)(2) and inhibited by added (PPr3)-Pr-i. The reaction is proposed to occur by initial dissociation of a phosphine ligand and not by radical recombination of 2 mol of ((TeAr)-Te-center dot)Mo(CO)(3)((PPr3)-Pr-i)(2). Reaction of ((TePh)-Te-center dot)Mo(CO)(3)((PPr3)-Pr-i)(2), with L = pyridine (py) or CO, is rapid and quantitative at room temperature to form PhTeTePh and Mo(L)(CO)(3)((PPr3)-Pr-i)(2), in keeping with thermochemical predictions. The rate of reaction of ((TeAr)-Te-center dot)W(CO)(3)((PPr3)-Pr-i)(2) and CO is first-order in the metal complex and is proposed to proceed by the associative formation of the 19 e(-) radical complex ((TePh)-Te-center dot)W(CO)(4)((PPr3)-Pr-i)(2) which extrudes a (TePh)-Te-center dot radical.

  DOI：

  10.1021/ic061654x