methyliumyl | 15091-72-2

• 英文名称: methyliumyl
• 英文别名: carbene radical cation
• CAS: 15091-72-2
• 化学式: CH₂
• 分子量: 14.0269
• InChiKey: CCOXZMOGYFFTRT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  1
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 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：

  硫化氢 、 methyliumyl 生成 mercaptomethylium
  参考文献：
  名称：

  Ion-molecule reactions in mixture of methane with water, hydrogen sulfide, and ammonia

  摘要：

  DOI：

  10.1021/ja00794a001
• 作为产物：
  描述：

  methane 在 N₂⁽¹⁺⁾ 作用下， 以 gas 为溶剂， 生成 methyliumyl 、 [3H]甲基鎓
  参考文献：
  名称：

  Gas phase reaction rates of N⁺₂ with CH₄, O₂, and n‐H₂ at very low temperatures

  摘要：

  Using a free jet flow reactor, we have measured the bimolecular rate coefficients for the reactions N+2 with CH4, O2, and n-H2 at temperatures below 15 K. The reaction of CH4 proceeds at a rate which is only slightly faster than the rates at 70 and 300 K, but shows no apparent temperature dependence between 8–15 K. The measurements for the reaction of N+2 with O2 near 10 K indicate a marked increase of the rate coefficient from the room temperature value. The kinetic energy dependence of the rate coefficient for the reaction N+2 with n-H2 resembles the peculiar behavior shown by the reactions of NH+3 and C2H+2 with H2 where a minimum is observed in the rate coefficient. Possible mechanistic implications of such distinct temperature dependences are discussed.

  DOI：

  10.1063/1.460349

文献信息

• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: S: SVol.4a/b, 1.3.8.11.1, page 212 - 214
  作者：

  DOI：——

  日期：——
• Plessis, Pierre; Marmet, Paul, Canadian Journal of Chemistry, 1987, vol. 65, p. 1424 - 1432
  作者：Plessis, Pierre、Marmet, Paul

  DOI：——

  日期：——
• Energy dependence of the reaction of CH⁺₂ with HCl
  作者：J. Glosik、W. Freysinger、W. Lindinger

  DOI：10.1063/1.460907

  日期：1991.8.15

  The energy dependence of the reaction of CH+2 with HCl has been investigated using a selected ion flow drift tube (SIFDT) in the center-of-mass kinetic energy (KEc.m.) range from 0.04–2 eV. The reaction rate coefficient is fast at near thermal energies (k∼1.5×10−9 cm3 s−1) but decreases dramatically with increasing KEc.m. to k<1×10−10 cm3 s−1 at 2 eV, which is quite uncommon for a thermally fast ion–molecule reaction.
• Dissociation of CH₃Cl by 1 MeV H⁺, He⁺, and O⁺
  作者：M. N. Monce、A. K. Edwards、R. M. Wood、M. F. Steuer、A. V. Shah、P. Tabor

  DOI：10.1063/1.441458

  日期：1981.3

  The dissociation of methyl chloride produced by bombardment of 1 MeV H+, He+, and O+ projectiles was investigated. H+, H+2, H+3, C+, CH+2, CH+3, and Cl+ fragments were observed and their respective kinetic energy spectra recorded. Results suggest that one particular channel involved in the dissociation is CH3Cl2+→CH+3+Cl+ with a dissociation energy of 6.6 eV. Results also indicate a possible mechanism in CH+n production involving the dissociation of a CHnClm+ fragment.
• Dissociative Charge Transfer of Argon Ions with Methane Molecules from Ultralow to Superthermal Collision Energies
  作者：Paolo Tosi、David Cappelletti、Oleg Dmitriev、Sara Giordani、Davide Bassi、Darin R. Latimer、Mark A. Smith

  DOI：10.1021/j100042a031

  日期：1995.10

  Total cross sections, absolute reaction rate coefficients, and product branching ratios are reported for the reaction Ar+ + CH4 at energies from 5 x 10(-4) to 4 eV using two different and complementary techniques, Significant deviations from the Langevin theory are observed in the energy dependence of the total cross section and interpreted in terms of a simple dynamical model. We find the collision energy is ineffective in altering the product branching ratios over the whole energy range studied, while the spin-orbit components of Ar+ have a major effect on the product distribution.