(13)C-trifluoroiodomethane | 74228-31-2

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 卤代烷
• 英文名称: (13)C-trifluoroiodomethane
• 英文别名: trifluoro-iodo-[¹³C]methane
• CAS: 74228-31-2
• 化学式: CF₃I
• 分子量: 196.9
• InChiKey: VPAYJEUHKVESSD-OUBTZVSYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.94
• 重原子数：
  5.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  periodomethane-13C 在 iodine pentafluoride 作用下， 生成 (13)C-trifluoroiodomethane
  参考文献：
  名称：

  Time‐resolved infrared‐spectroscopic observation of relaxation and reaction processes during and after infrared‐multiphoton excitation of¹²CF₃I and¹³CF₃I with shaped nanosecond pulses

  摘要：

  We have produced shaped infrared laser pulses of several kinds ranging from about 2–100 ns duration using a line tuned CO2 laser combined with intracavity absorbers and a CdTe electro-optical switch. The time-dependent infrared absorption of 12CF3I and 13CF3I during and after infrared-multiphoton excitation with these pulses was followed by means of a line tuned continuous wave-CO2 laser and a fast HgCdTe infrared detector (time resolution about 1 ns). The effective time-dependent absorption cross section shows fluence-dependent decay at large fluence with an effective exponential decay constant kI,σ≂1.12 cm2 J−1. This can be interpreted by first generation and then decay by further radiative pumping of highly excited levels of CF3I. The results have been analyzed by master equation modeling using a nonlinear case B/C master equation for multiphoton excitation and very simple models for the absorption properties of highly excited molecules. After nanosecond excitation to very high levels, one finds unimolecular decay CF3I→CF3+I with distinct rate constants (2±1)×108 and (5±4)×106 s−1, which corresponds to ensembles of molecules differing by one CO2 -laser quantum of energy, in agreement with unimolecular rate theory and master equation models. The most striking observation is a slow, collision-free intramolecular rovibrational redistribution process observed by real time spectroscopy on the nanosecond time scale for molecules excited by modest fluence corresponding to typical average energies of five CO2 laser quanta and somewhat more.

  DOI：

  10.1063/1.462279

文献信息

• Cauchetier, M.; Croix, O.; Luce, M., Berichte der Bunsen-Gesellschaft, 1985, vol. 89, p. 290 - 291
  作者：Cauchetier, M.、Croix, O.、Luce, M.、Tistchenko, S.

  DOI：——

  日期：——