| 69254-43-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• CAS: 69254-43-9
• 化学式: C₂₀H₇I₄O₅*2Na
• 分子量: 880.87
• InChiKey: MHELHJJTOAXMHY-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  1.38
• 重原子数：
  30.0
• 可旋转键数：
  2.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  92.65
• 氢给体数：
  1.0
• 氢受体数：
  5.0

反应信息

• 作为产物：
  描述：

  erythrosin 在 十六烷基三甲基溴化铵 作用下， 以 水 为溶剂， 生成 、
  参考文献：
  名称：

  A nanosecond laser-flash-photolysis study of intramicellar reactions in the erythrosin B/CTAB aqueous system

  摘要：

  Both "fast", occurring within 1-mu-s after excitation, and "slow" reactions, occurring in the hundreds of microseconds time scale, were observed following erythrosin B triplet formation in the cationic micellar system cetyltrimethylammonium bromide (CTAB). The "fast" events are shown to occur in multiply occupied micelles and are assigned to bimolecular reactions. The "slow" ones, which have not been studied in detail, are due to first-order deactivation processes of the triplet occurring in singly occupied micelles. The effects of the excitation intensity and occupancy on the fast triplet decay, radical formation, and subsequent geminate recombination have been studied. The triplet disappears with observed rate constants ranging from 5.5 x 10(6) to 3.6 x 10(6) s-1 while the formation of radicals has rate constants varying from 3.3 x 10(7) to 9.1 x 10(6) s-1. Both in triplet decay and in radical formation the increase in rates occurs by increasing the excitation energy and occupancy. The identification of the precursor(s) of radicals is discussed. The geminal radical recombination has a rate constant of 2.1 x 10(6) s-1.

  DOI：

  10.1021/j100187a029