[fac-Os(CO)3Cl2(pyrazine)] | 437982-02-0

• 英文名称: [fac-Os(CO)3Cl2(pyrazine)]
• 英文别名: Os(CO)3Cl2(pyrazine)
• CAS: 437982-02-0
• 化学式: C₇H₄Cl₂N₂O₃Os
• 分子量: 425.226
• InChiKey: BWCVMGNRIABRRG-UHFFFAOYSA-L

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：
  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

• 作为反应物：
  描述：

  [fac-Os(CO)3Cl2(pyrazine)] 以 丙酮 为溶剂， 生成 吡嗪 、 [fac-Cl2Os(CO)3(pyrazine)fac-Os(CO)3Cl2
  参考文献：
  名称：

  The synthesis and behaviour of pyrazine mononuclear carbonyl complexes of Rh(I), Ir(I), Ru(II) and Os(II)

  摘要：

  The synthesis in high yields and the dissociative behaviour in the solid state and in solution of the mononuclear complexes [cis-M(CO)(2)Cl(pyz)] (M = Rh. Ir, pyz = pyrazine) and [fac-M(CO)(3)Cl-2(pyz)] (M = Ru, Os) are reported. The mononuclear complexes of Rh and Ir are relatively labile with respect to pyrazine release. Particularly in the case of rhodium they generate even in the solid state the corresponding dinuclear complexes [cis-Cl(CO)(2)M(pyz)cis-M(CO)(2)Cl] (M = Rh, Ir). The H-1 NMR spectra of these mononuclear Rh and Ir complexes in CHCl3 solution show. at 25 and 60 degreesC. respectively, a fast and reversible dissociation of metal coordinated pyrazine, which is hindered by lowering the temperature. Crystallographic aspects of [cis-Ir(CO)(2)Cl(pyz)] have been investigated via single crystal X-ray diffraction. The mononuclear complexes of Ru and Os are more stable. In the solid state they do not rearrange, with release of pyrazine, to generate the related dimeric complexes with pyrazine as bridge. In solution, at room temperature, they do not dissociate quickly, although a mixture of monomeric and dimeric pyrazine complexes (ratio monomer to dimer 9:1 and 15:1 for Ru and Os. respectively) is slowly formed by a process which is reverted by addition of excess pyrazine, as expected for a dissociative equilibrium. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(01)00772-1
• 作为产物：
  描述：

  吡嗪 、 [Os(μ-Cl)(CO)3(Cl)]2 以 二氯甲烷 为溶剂， 以90%的产率得到[fac-Os(CO)3Cl2(pyrazine)]
  参考文献：
  名称：

  The synthesis and behaviour of pyrazine mononuclear carbonyl complexes of Rh(I), Ir(I), Ru(II) and Os(II)

  摘要：

  The synthesis in high yields and the dissociative behaviour in the solid state and in solution of the mononuclear complexes [cis-M(CO)(2)Cl(pyz)] (M = Rh. Ir, pyz = pyrazine) and [fac-M(CO)(3)Cl-2(pyz)] (M = Ru, Os) are reported. The mononuclear complexes of Rh and Ir are relatively labile with respect to pyrazine release. Particularly in the case of rhodium they generate even in the solid state the corresponding dinuclear complexes [cis-Cl(CO)(2)M(pyz)cis-M(CO)(2)Cl] (M = Rh, Ir). The H-1 NMR spectra of these mononuclear Rh and Ir complexes in CHCl3 solution show. at 25 and 60 degreesC. respectively, a fast and reversible dissociation of metal coordinated pyrazine, which is hindered by lowering the temperature. Crystallographic aspects of [cis-Ir(CO)(2)Cl(pyz)] have been investigated via single crystal X-ray diffraction. The mononuclear complexes of Ru and Os are more stable. In the solid state they do not rearrange, with release of pyrazine, to generate the related dimeric complexes with pyrazine as bridge. In solution, at room temperature, they do not dissociate quickly, although a mixture of monomeric and dimeric pyrazine complexes (ratio monomer to dimer 9:1 and 15:1 for Ru and Os. respectively) is slowly formed by a process which is reverted by addition of excess pyrazine, as expected for a dissociative equilibrium. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(01)00772-1