Pr2(glutathione(3-))2*(H2O)4 | 835880-36-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Pr2(glutathione(3-))2*(H2O)4
• CAS: 835880-36-9
• 化学式: C₂₀H₃₆N₆O₁₆Pr₂S₂
• 分子量: 962.484
• InChiKey: FXDMWRWUJJAPPZ-UHFFFAOYSA-H

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：

  zinc(II) nitrate 、 Pr2(glutathione(3-))2*(H2O)4 以 乙醇 、 水 为溶剂， 生成 Pr2(glutathione(3-))2Zn(H2O)6
  参考文献：
  名称：

  Absorption spectroscopic investigations involving 4f-4f transitions to explore the kinetics of complexation of Zn(II) with Pr(III)–glutathione complex

  摘要：

  The kinetics of complexation of Zn(II) with Pr-2(GSH)(2).(H2O)(4) 1 (GSH-glutathione) to form Pr-2(GSH)(2)Zn(H2O)(6) complex 2 has been investigated at 30degreesC by following the changes in the intensity (absorbance, molar absorptivity) and intensity (oscillator strength P and Judd-Ofelt-Tlambda intensity) parameters in equimolar DMF-Water. In order to support kinetics data, the complex 1 and 2 have been synthesized and characterized by elemental analysis, IR and H-1 NMR spectral analysis. Molecular weights of 1 and 2 determined by ebullioscopic and cryoscopic methods and preliminary molecular modeling experiments have helped in proposing most probable structures for 1 and 2. Kinetics showed first order dependence, in terms of concentration of Zn(II) and complex 1, on the rate of formation of complex 2. Generally, hypersensitive transitions (the transitions obeying \DeltaJ\ selection rules) were used in spectra-structure correlation studies. We have used the four 4f-4f transitions of Pr(III), which do not obey selection rules, yet are substantially sensitive to coordination changes, for kinetic study. The rate constants evaluated from individual 4f-4f bands are quite close hence supporting our observations on ligand mediated pseudohypersensitivity. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2004.05.003
• 作为产物：
  描述：

  praseodymium(III) nitrate hexahydrate 、 glutathion 以 水 、 乙酸乙酯 、 丙酮 为溶剂， 以78%的产率得到Pr2(glutathione(3-))2*(H2O)4
  参考文献：
  名称：

  Absorption spectroscopic investigations involving 4f-4f transitions to explore the kinetics of complexation of Zn(II) with Pr(III)–glutathione complex

  摘要：

  The kinetics of complexation of Zn(II) with Pr-2(GSH)(2).(H2O)(4) 1 (GSH-glutathione) to form Pr-2(GSH)(2)Zn(H2O)(6) complex 2 has been investigated at 30degreesC by following the changes in the intensity (absorbance, molar absorptivity) and intensity (oscillator strength P and Judd-Ofelt-Tlambda intensity) parameters in equimolar DMF-Water. In order to support kinetics data, the complex 1 and 2 have been synthesized and characterized by elemental analysis, IR and H-1 NMR spectral analysis. Molecular weights of 1 and 2 determined by ebullioscopic and cryoscopic methods and preliminary molecular modeling experiments have helped in proposing most probable structures for 1 and 2. Kinetics showed first order dependence, in terms of concentration of Zn(II) and complex 1, on the rate of formation of complex 2. Generally, hypersensitive transitions (the transitions obeying \DeltaJ\ selection rules) were used in spectra-structure correlation studies. We have used the four 4f-4f transitions of Pr(III), which do not obey selection rules, yet are substantially sensitive to coordination changes, for kinetic study. The rate constants evaluated from individual 4f-4f bands are quite close hence supporting our observations on ligand mediated pseudohypersensitivity. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2004.05.003