pentakis{(trimethylsilyl)oxy}antimony(V)-pyridine | 148479-36-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: pentakis{(trimethylsilyl)oxy}antimony(V)-pyridine
• CAS: 148479-36-1
• 化学式: C₂₀H₅₀NO₅SbSi₅
• 分子量: 646.798
• InChiKey: CGTWBXZYCZRGOO-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：

  氯化锑(V) 、 sodium trimethylsilanolate 在 pyridine 作用下， 以 正己烷 为溶剂， 以46%的产率得到pentakis{(trimethylsilyl)oxy}antimony(V)-pyridine
  参考文献：
  名称：

  Synthesis and derivatives of pentakis[(trimethylsilyl)oxy]antimony

  摘要：

  Pentakis[(trimethylsilyl)oxy]antimony(V) [Sb(OSiMe3)5; 1] is prepared from SbCl5 and 5 equiv of NaOSiMe3 in benzene or hexane solution. According to mass spectrometric and NMR spectroscopic data, 1 appears to be a monomer. It forms a pyridine adduct pyr-Sb(OSiMes)5 (2), the crystal structure of which has been determined. The mononuclear complex has octahedrally coordinated antimony atoms. With an additional equivalent of NaOSiMe3, the antimonate complex Na[Sb(OSiMe3)6] (3) is formed, which crystallizes as a monoglyme adduct [Na(MeOCH2CH2OMe)] [Sb(OSiMe3)6] (3a). Partial hydrolysis of 3, or a direct synthesis using NaOSiMe3 and NaOH as reagents for SbCl5, leads to the crystalline dinuclear complex Na2-[Sb2(OH)2(OSiMe3)10], the structure of which has also been determined. It features two cubes with a common Na2O2 face and tetracoordinated sodium and hexacoordinated antimony atoms. The hydroxy groups are in bridgehead positions. NMR data suggest that the dimers dissociate in solution to give octahedral mononuclear complexes with the silyloxy groups in fixed cis and trans positions (4:1) relative to the OH groups.

  DOI：

  10.1021/om00030a034