[PrIr2(CO)4(μ-CO)(μ-dppm)2] | 220234-92-4

• 英文名称: [PrIr2(CO)4(μ-CO)(μ-dppm)2]
• CAS: 220234-92-4
• 化学式: C₅₅H₄₄Ir₂O₅P₄Pt
• 分子量: 1488.37
• InChiKey: HHKFOTZRMSYDOZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  Pt(dppm)2Cl2 、 [PPN][Ir(CO)4] 以 二氯甲烷 、 丙酮 为溶剂， 以70%的产率得到[PrIr2(CO)4(μ-CO)(μ-dppm)2]
  参考文献：
  名称：

  Complexes with Platinum−Iridium Bonds:  Stepwise Formation of a PtIr₂ Cluster Complex

  摘要：

  The reaction of [Pt(dppm)(2)]Cl-2 (dppm = Ph2PCH2PPh2) with [Ir(CO)(4)](-) and dppm in a 1:2:1 ratio leads in a multistep reaction to the new heteronuclear cluster complex [PtIr2(CO)(2)(mu-CO)(mu-dppm)(3)], which contains a triangle of metal atoms with each edge bridged by a dppm ligand and in which only the platinum atom is coordinatively unsaturated. The initial step in the reaction leads to formation of the neutral and cationic binuclear complexes [PtIrCl(CO)(2)(mu-dppm)(2)] and [PtIr(CO)(3)(mu-dppm)(2)](+), respectively. The binuclear complexes then react with additional [Ir(CO)(4)](-) to form the cluster [PtIr2(CO)(4)(mu-CO)(mu-dppm)(2)] by insertion into a Pt-P linkage; this cluster can exist in two isomeric forms, each containing a triangular PtIr2 group with the Ir-Ir and one Pt-Ir edge bridged by dppm ligands but differing in stereochemistry. These isomers equilibrate slowly at room temperature, and each reacts easily with dppm to form the final cluster complex [PtIr2(CO)(2)(mu-CO)(mu-dppm)(3)]. The structures of the complexes [PtIr2(CO)(2)(mu-CO)(mu-dppm)(3)], [PtIr(CO)(3)(mu-dppm)(2)][PF6], and one isomer of [PtIr2(CO)(4)(mu-CO)(mu-dppm)(2)] have been determined crystallographically, and the reaction sequence has been determined by monitoring reactions through NMR methods.

  DOI：

  10.1021/om980665y