tetrakis(4-carboxyphenyl)germanium | 1018982-19-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: tetrakis(4-carboxyphenyl)germanium
• 英文别名: 4-Tris(4-carboxyphenyl)germylbenzoic acid；4-tris(4-carboxyphenyl)germylbenzoic acid
• CAS: 1018982-19-8
• 化学式: C₂₈H₂₀GeO₈
• 分子量: 557.052
• InChiKey: HDJYRXHUJJBCII-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.86
• 重原子数：
  37
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  149
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  zinc(II) nitrate hexahydrate 、 tetrakis(4-carboxyphenyl)germanium 以 乙醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 以38%的产率得到
  参考文献：
  名称：

  Metal−Organic Frameworks from Silicon- and Germanium-Centered Tetrahedral Ligands

  摘要：

  Metal-organic frameworks (MOFs) have been constructed from the reaction of Si(C6H4CO2H)(4) and of Ge(C6H4CO2H)(4) with Zn(II). The two structures are quite different from each other, and both are different from that of the known MOF of (C6H4CO2H)(4) with Zn(II). The zinc portion of the carbon system is a dinuclear zinc-oxo cluster with square-planar geometry, that of the silicon system consists of zinc-oxo chains containing two zinc atoms with different geometries, and that of the germanium system consists of linear zinc-oxo clusters containing three zinc atoms with two different geometries. For the silicon system, the secondary building unit around zinc is a distorted tetrahedron, whereas for the germanium system, the secondary building unit around zinc is a bipyramid with eight coordination. The differences in morphology may be due to the more open geometry provided as the M-C bond increases from carbon to germanium. Both MOFs have considerable vacancy in the crystal lattice, calculated to be ca. 42% for the silicon system and ca. 46% for the germanium system. Gas sorption experiments on the germanium system indicated significant uptake of both nitrogen and carbon dioxide.

  DOI：

  10.1021/om701262m
• 作为产物：
  描述：

  1,4-二溴苯 在 butyllithium 、 tert-butyllithium 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 为溶剂， 生成 tetrakis(4-carboxyphenyl)germanium
  参考文献：
  名称：

  Metal−Organic Frameworks from Silicon- and Germanium-Centered Tetrahedral Ligands

  摘要：

  Metal-organic frameworks (MOFs) have been constructed from the reaction of Si(C6H4CO2H)(4) and of Ge(C6H4CO2H)(4) with Zn(II). The two structures are quite different from each other, and both are different from that of the known MOF of (C6H4CO2H)(4) with Zn(II). The zinc portion of the carbon system is a dinuclear zinc-oxo cluster with square-planar geometry, that of the silicon system consists of zinc-oxo chains containing two zinc atoms with different geometries, and that of the germanium system consists of linear zinc-oxo clusters containing three zinc atoms with two different geometries. For the silicon system, the secondary building unit around zinc is a distorted tetrahedron, whereas for the germanium system, the secondary building unit around zinc is a bipyramid with eight coordination. The differences in morphology may be due to the more open geometry provided as the M-C bond increases from carbon to germanium. Both MOFs have considerable vacancy in the crystal lattice, calculated to be ca. 42% for the silicon system and ca. 46% for the germanium system. Gas sorption experiments on the germanium system indicated significant uptake of both nitrogen and carbon dioxide.

  DOI：

  10.1021/om701262m

文献信息

• Metal−Organic Frameworks from Silicon- and Germanium-Centered Tetrahedral Ligands
  作者：Joseph B. Lambert、Zhongqiang Liu、Chunqing Liu

  DOI：10.1021/om701262m

  日期：2008.4.1

  Metal-organic frameworks (MOFs) have been constructed from the reaction of Si(C6H4CO2H)(4) and of Ge(C6H4CO2H)(4) with Zn(II). The two structures are quite different from each other, and both are different from that of the known MOF of (C6H4CO2H)(4) with Zn(II). The zinc portion of the carbon system is a dinuclear zinc-oxo cluster with square-planar geometry, that of the silicon system consists of zinc-oxo chains containing two zinc atoms with different geometries, and that of the germanium system consists of linear zinc-oxo clusters containing three zinc atoms with two different geometries. For the silicon system, the secondary building unit around zinc is a distorted tetrahedron, whereas for the germanium system, the secondary building unit around zinc is a bipyramid with eight coordination. The differences in morphology may be due to the more open geometry provided as the M-C bond increases from carbon to germanium. Both MOFs have considerable vacancy in the crystal lattice, calculated to be ca. 42% for the silicon system and ca. 46% for the germanium system. Gas sorption experiments on the germanium system indicated significant uptake of both nitrogen and carbon dioxide.