1,2-Ethanediyl, 1,1,2,2-tetrafluoro- | 18251-90-6

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 乙烯基卤化物
• 英文名称: 1,2-Ethanediyl, 1,1,2,2-tetrafluoro-
• CAS: 18251-90-6；95339-40-5
• 化学式: C₂F₄
• 分子量: 100.016
• InChiKey: MKSSIWCGGJYICK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.84
• 重原子数：
  6.0
• 可旋转键数：
  1.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 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：

  八氟丙烷 在 N⁽¹⁺⁾ 作用下， 26.9 ℃ 、66.66 Pa 条件下， 生成 trifluoromethylium 、 pentafluoroethylium 、 1,2-Ethanediyl, 1,1,2,2-tetrafluoro- 、 1,1,1,2,3,3,3-heptafluoropropane
  参考文献：
  名称：

  几种具有正离子的全氟化碳的气相反应研究

  摘要：

  H 3 O +，NO +，O 2 +，H 2 O +，N 2 O +，O +，CO 2 +，CO +，N +和N 2 +反应的双分子速率系数和离子产物具有三个氟代烯烃（C 2 F 4，C 3 F 6和2-C 4 F 8）和三个完全饱和的全氟化碳（C 2 F 6，C 3 F报道了在300K下的8和n -C 4 F 10）。发现所有六个全氟化碳均与NO +不反应。C 2 F 6也与O 2 +，H 2 O +和N 2 O +不反应，并且C 3 F 8和n -C 4 F 10也与O 2 +不反应。C 3 F 6是唯一与H 3 O +反应的全氟化碳以可测量的速度 所有其他反应均以碰撞速度或接近碰撞速度的方式发生，但N 2 O +与C 2 F 4和C 3 F 8以及CO 2 +与C 2 F 4和C 2 F 6的反应除外。，其实验速率系数显示出与碰撞值的明显偏离。建议大多数反应通过复杂的中间体进行，导致

  DOI：

  10.1021/jp960071d

文献信息

• Reactions of Ar⁺ with halocarbons and of I⁺ with CF₃I
  作者：Robert A. Morris、Jane M. Van Doren、A. A. Viggiano、John F. Paulson

  DOI：10.1063/1.463605

  日期：1992.7

  The gas phase reactions of Ar+ with the halocarbons CF3Cl, CF3Br, CF3I, CF4, C2F6, and C2F4 have been studied using a variable temperature-selected ion flow tube (VT-SIFT) instrument operated at 298 and 500 K. Rate constants and product branching percentages were measured at both temperatures. Ar+ reacts at the collisional rate with all of the above neutrals at both 298 and 500 K. The reactions with CF3X yield CF+3 and CF2X+ for all X (the reaction with CF4 produces only CF+3 ). For X=I, there is an additional channel leading to the ionic product I+. The reaction of Ar+ with C2F6 produces both CF+3 and C2F+5. The reaction of Ar+ with C2F4 forms a rich product spectrum consisting of the ions CF+, CF+2, CF+3, C2F+3, and C2F+4. The reaction product distributions are compared with results from ionization experiments such as photoion–photoelectron coincidence (PIPECO) and electron impact mass spectrometry, and in some cases excellent agreement is found. The reaction of I+ with CF3I, which is a secondary reaction in the Ar+/CF3I system, was investigated at 298 K in separate experiments. This reaction is rapid and forms four product ions: CF+3, CF2I+, CF3I+, and I+2. The results are compared with previously published information.