| 80004-15-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• CAS: 80004-15-5
• 化学式: C₂₈H₅₁N₂O₅
• 分子量: 495.723
• InChiKey: DBAMIAXJUBUZGK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  35
• 可旋转键数：
  13
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  68.9
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  双(2,2,6,6-四甲基-4-哌啶基)癸二酸酯 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 生成 双(2,2,6,6-四甲基-4-哌啶基)癸二酸酯氮氧自由基 、
  参考文献：
  名称：

  An electron spin polarization study of the interaction of photoexcited triplet molecules with mono- and polynitroxyl stable free radicals

  摘要：

  Time-resolved electron spin resonance (TR ESR) has been used to investigate the chemically induced dynamic electron polarization (CIDEP) generated by the interaction of stable free radicals with the triplet states of benzophenone, benzil, and 2-acetylnaphthalene. The stable radicals were mono-, di-, tri-, and tetranitroxyl free radicals possessing the 2,2,6,6-tetramethylpiperidine-N-oxyl moiety. All of the stable radical systems investigated were found to be emissively polarized by interaction with the triplet states, and the phase of polarization was independent of the sign of zero-field splitting (D) of the interacting triplet molecule. Possible and likely mechanisms of polarization transfer (creation) resulting from the interaction of photoexcited triplet molecules with nitroxyls in the strong electron exchange are discussed. The emissive CIDEP of nitroxyls observed in the interactions with triplet benzil, which has D > 0, provides strong support for the operation of the radical-triplet pair mechanism. Within the time scale of TR ESR experiments(approximately 10(-7)-10(-6) s) no significant variation in the shape of the CIDEP spectra of the nitroxyls was observed, either in viscous media or in micelles. It is concluded that intramolecular spin exchange (or conformational change) of polynitroxyls occurs much faster than the time resolution of the experiment.

  DOI：

  10.1021/j100108a007

文献信息

• An electron spin polarization study of the interaction of photoexcited triplet molecules with mono- and polynitroxyl stable free radicals
  作者：Nicholas J. Turro、Igor V. Khudyakov、Stefan H. Bossmann、David W. Dwyer

  DOI：10.1021/j100108a007

  日期：1993.2

  Time-resolved electron spin resonance (TR ESR) has been used to investigate the chemically induced dynamic electron polarization (CIDEP) generated by the interaction of stable free radicals with the triplet states of benzophenone, benzil, and 2-acetylnaphthalene. The stable radicals were mono-, di-, tri-, and tetranitroxyl free radicals possessing the 2,2,6,6-tetramethylpiperidine-N-oxyl moiety. All of the stable radical systems investigated were found to be emissively polarized by interaction with the triplet states, and the phase of polarization was independent of the sign of zero-field splitting (D) of the interacting triplet molecule. Possible and likely mechanisms of polarization transfer (creation) resulting from the interaction of photoexcited triplet molecules with nitroxyls in the strong electron exchange are discussed. The emissive CIDEP of nitroxyls observed in the interactions with triplet benzil, which has D > 0, provides strong support for the operation of the radical-triplet pair mechanism. Within the time scale of TR ESR experiments(approximately 10(-7)-10(-6) s) no significant variation in the shape of the CIDEP spectra of the nitroxyls was observed, either in viscous media or in micelles. It is concluded that intramolecular spin exchange (or conformational change) of polynitroxyls occurs much faster than the time resolution of the experiment.