{(cobalt)2(carbonyl)2(μ-carbonyl)2(μ-dmpm)2} | 122293-25-8

• 英文名称: {(cobalt)2(carbonyl)2(μ-carbonyl)2(μ-dmpm)2}
• CAS: 122293-25-8
• 化学式: C₁₄H₂₈Co₂O₄P₄
• 分子量: 502.255
• InChiKey: DFBMXGGVOVPRQU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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

• 作为反应物：
  描述：

  tetrakis(acetonitrile)copper(I)tetrafluoroborate 、 {(cobalt)2(carbonyl)2(μ-carbonyl)2(μ-dmpm)2} 以 not given 为溶剂， 生成 {Co4Cu3(CO)8(μ-dmpm)4}BF4
  参考文献：
  名称：

  一种异常的七核Co 4 Cu 3簇复合物：铜（III）簇衍生物吗？

  摘要：

  新的簇阳离子[Co 4 Cu 3（CO）8（Me 2 PCH 2 PMe 2）4 ] +包含一个桥接两个Co 2 Cu三角形的中心铜原子；基于（i）其近似方形平面的立体化学和（ii）电子计数的考虑，建议中心铜原子具有d 8 Cu III电子构型，这在铜簇中是独特的。

  DOI：

  10.1039/c39910000309
• 作为产物：
  描述：

  双(二甲基膦)甲烷 在 CO 、 NaBH₄ 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 {(cobalt)2(carbonyl)2(μ-carbonyl)2(μ-dmpm)2}
  参考文献：
  名称：

  Cobalt carbonyl complexes with bridging diphosphine ligands

  摘要：

  Reduction of cobalt(II) chloride by Na[BH4] in the presence of CO and dmpm (=Me2PCH2-PMe2) gave either [Co2(CO)2(mu-CO)2(mu-dmpm)2] (1a) or [Co4(CO)5(mu-CO)3(mu-dmpm)2] (6), depending on the reaction stoichiometry. Complex 1a, in solution is in equilibrium with its isomer [Co2(CO)4(mu-dmpm)2] (2a), and the thermodynamic parameters for the reaction were determined by measuring the equilibrium constant as a function of temperature using FTIR. The activation energy for the isomerization was determined by variable-temperature NMR studies, which also indicated that 2a is weakly paramagnetic. Reaction of 1a with iodine or [Cu(NCMe)4]+ gave [Co2(mu-I)(mu-CO)(CO)2(mu-dmpm)2]+ (7) and [Co4Cu3(CO)8(mu-dmpm)2]+ (8), respectively. The molecular structures of 6 and 8 were characterized by X-ray diffraction (6, orthorhombic, P2(1)2(1)2(1), a = 14.953(2) angstrom, b = 11.386(1) angstrom, c = 16.836(1) angstrom, Z = 4, R = 0.038; 8, monoclinic, P2(1)/c, a = 10.767(2) angstrom, b = 20.092(2) angstrom, c = 22.370(3) angstrom, beta = 92.13-degrees, Z = 4, R = 0.076). Complex 6 contains an irregular tetrahedral Co4 cluster with two edges bridged by dmpm ligands and one face edge-bridged by carbonyl groups. The Co-Co bond lengths are 2.426(1)-2.541(2) angstrom. The cluster 8 contains a central copper atom with approximately square-planar stereo-chemistry, which is apparently unique in copper clusters.

  DOI：

  10.1021/om00031a052