3-(3-芘基)丙基二甲基氯硅烷 | 86278-57-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 芘
• 中文名称: 3-(3-芘基)丙基二甲基氯硅烷
• 英文名称: (3-(3-pyrenyl)propyl)dimethylmonochlorosilane
• 英文别名: 3-(3-pyrenyl)propyldimethylmonochlorosilane；3-(1-pyrenyl)propyldimethylchlorosilane；Silane, chlorodimethyl[3-(1-pyrenyl)propyl]-；chloro-dimethyl-(3-pyren-1-ylpropyl)silane
• CAS: 86278-57-1
• 化学式: C₂₁H₂₁ClSi
• 分子量: 336.936
• InChiKey: IZPUTALPPFPMFZ-UHFFFAOYSA-N

物化性质

• 沸点：
  470.2±24.0 °C(Predicted)
• 密度：
  1.156±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.96
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  3-(3-芘基)丙基二甲基氯硅烷 在 sodium hydroxide 作用下， 以 水 、 甲苯 为溶剂， 生成 3-(1-pyrenyl)propyldimethylhydroxysilane
  参考文献：
  名称：

  Origins of Bound-Probe Fluorescence Decay Heterogeneity in the Distribution of Binding Sites on Silica Surfaces

  摘要：

  Inhomogeneous fluorescence decay kinetics have been observed from 3-(1-pyrenyl)propyldimethylsilane (3PPS) covalently bound to a silica surface. The excited-state decay kinetics were found to follow a discrete biexponential model rather than a continuous lifetime distribution model and were attributed to the specific site heterogeneity on the silica surface. The existence of two distinguishable silanol sites on silica surface was further supported by the difference in fluorescence decays when a chlorosilane versus a hydroxysilane reagent is used to bind pyrene to the surface. It was also found, for chlorosilane-bound pyrene, that the decay kinetics became more heterogeneous with increasing reaction time or upon exposure of the derivatized sample to water. These results can be explained by a selective reaction between the hydroxysilane and a small population of active silanols, while chlorosilane reacts indiscriminately with the surface under kinetic control. Fluorescence quenching studies of surface-immobilized pyrene by iodine were also conducted; enhanced quenching rates for the shorter lived excited-state population were observed and attributed to the adsorption of quencher molecules to active silanol sites, which also caused a faster decay rate of the surface-bound pyrene probe.

  DOI：

  10.1021/j100046a028
• 作为产物：
  描述：

  1-溴芘 在 dihydrogen hexachloroplatinate 、 正丁基锂 作用下， 以 异丙醇 、 甲苯 为溶剂， 反应 11.0h， 生成 3-(3-芘基)丙基二甲基氯硅烷
  参考文献：
  名称：

  与硅胶结合的pyr硅烷振动跃迁的表面扰动

  摘要：

  DOI：

  10.1021/j100270a025