| 1542150-27-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机磺酸及其衍生物
• CAS: 1542150-27-5
• 化学式: CF₃O₃S*C₁₁H₂₇NP
• 分子量: 353.386
• InChiKey: LXARRVGZRNMLMY-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  3.81
• 重原子数：
  21.0
• 可旋转键数：
  8.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  69.23
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  辛胺 、 三甲基氧膦 、 三氟甲磺酸酐 以 氘代氯仿 为溶剂， 反应 0.25h， 以49%的产率得到
  参考文献：
  名称：

  Mechanistic Insights into the Role of Alkylamine in the Synthesis of CdSe Nanocrystals

  摘要：

  This paper reports a detailed mechanistic study of the effect of alkylamine on the synthesis of CdSe nanocrystals. Alkylamines are one of the most important additives for the synthesis of colloidal semiconductor nanocrystals. However, their effect on the monomer production as well as nanocrystal nucleation and growth are not well understood, as indicted by inconsistent and contradictory conclusions in the literature. We found that alkylamines slow down the reaction between cadmium oleate and trialkyl phosphine selenide by binding to cadmium and preventing the activation of trialkyl phosphine selenide. A linear correlation was observed between the observed reaction rate constant and the P-31 NMR chemical shift or (1)J(P-Se) of phosphine selenide. In the presence of alkylamine, an alkylaminophosphonium intermediate was observed. Mechanistic study suggests that the cleavage of P=Se bond is through nucleophilic attack by carboxylate instead of alkylamine. Interestingly, although alkylamines decrease the rate of monomer production, it increases the rate of CdSe nanocrystal growth. Although seemingly contradictory, this is due to a drastic decrease in the nanocrystal nucleation events in the presence of alkylamines. As a result, each nucleus is fed with more monomers and grows faster in the presence of alkylamine than in its absence.

  DOI：

  10.1021/ja4110182