Hg(4,4'-bis(carboxyl phenylazo)-dibenzo-18-crown-6)(2+) | 1312791-90-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• 英文名称: Hg(4,4'-bis(carboxyl phenylazo)-dibenzo-18-crown-6)(2+)
• CAS: 1312791-90-4
• 化学式: C₃₄H₃₂HgN₄O₁₀
• 分子量: 857.239
• InChiKey: MKMQMDVSCYJNPJ-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：

  汞 、 4,4'-bis(carboxyl phenylazo)-dibenzo-18-crown-6 在 acetic acid 、 sodium acetate 作用下， 以 水 、 二甲基亚砜 为溶剂， 生成 Hg(4,4'-bis(carboxyl phenylazo)-dibenzo-18-crown-6)(2+)
  参考文献：
  名称：

  Preparation of 4,4′-bis-(carboxyl phenylazo)-dibenzo-18-crown-6 dye and its application on ratiometric colorimetric recognition to Hg2+

  摘要：

  A multifunctional dye, 4,4'-bis-(carboxyl phenylazo)-dibenzo-18-crown-6 dye (BCADC) was designed and prepared via diazotization and coupling reaction of dibenzo-18-crown-6 with p-amino benzoic acid. The dye, combining crown ether ring, azo and carboxyl group, exhibits well-defined Hg2+-selective ratiometric colorimetric behavior, with the maximum absorbance peak changing from 354 nm to 408 nm exclusively. Under the optimum conditions, the recognition to Hg2+ has a linear range of 2.5-58 x 10(-7) mol L-1 with a 0.9978 correlation coefficient. The method was applied to analyse 3 environmental water samples with a detection limit of 2.9 x 10(-8) mol L-1 and a relative standard deviation (R.S.D.) lower than 3.7% (n = 5). The action mechanism between BCADC and metal ions was discussed by means of Job's plots and theoretical calculations. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2011.03.054