[VO(maltolato)2(H2O)] | 307493-31-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: [VO(maltolato)2(H2O)]
• 英文别名: [VO(H2O)(maltolate)2]
• CAS: 307493-31-8
• 化学式: C₁₂H₁₂O₈V
• 分子量: 335.164
• InChiKey: GPZKMXFLTXDKTM-UHFFFAOYSA-L

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：

  麦芽醇 、 氧化钒(IV) 以 水 为溶剂， 生成 [VO(maltolato)2(H2O)]
  参考文献：
  名称：

  Speciation and NMR relaxation studies of VO(IV) complexes with several O-donor containing ligands: oxalate, malonate, maltolate and kojate

  摘要：

  Potentiometric, spectral and (1)H NMR relaxation studies are reported on the complex formation of VO(IV) with the bidentate chelating ligands oxalic and malonic acids, of a dicarboxylic nature, and maltol and kojic acid, of the hydroxy-4-pyrone type. Complexes with stochiometries VOA and VOA(2) were characterised in aqueous solution. Two main features were established for the complex systems. It was found that five-membered ring chelation favours the cis arrangement in the bis complexes of maltol and kojic acid to a higher extent than in those of oxalic and malonic acids. Moreover, previous investigations of VO(IV) binding to maltol or its analogues did not consider the formation of hydroxo species. Formation of dihydroxo bridged dimeric complexes of stoichiometry (VOAH(-1))(2) and monomeric hydroxo species VOA(2)H(-1) or VOA(2)(OH), are now taken into account in order to explain the equilibrium and spectroscopic results. (1)H NMR relaxation measurements strongly suggest an equilibrium between the two isomers of the bis complexes. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0020-1693(00)00168-7