| 260803-06-3

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机氟化物
• CAS: 260803-06-3
• 化学式: C₂H₃F₂O
• 分子量: 81.042
• InChiKey: FAPQCHMUAOPKSD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  5
• 可旋转键数：
  1
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  以 gas 为溶剂， 生成 formyl fluoride 、 氟甲基自由基
  参考文献：
  名称：

  HFC-152的大气化学：CH2FCFHO2自由基的紫外吸收光谱，CH2FCFHO2 + NO反应的动力学。CH2FCHFO + NO2和烷氧基CH2FCFHO的命运

  摘要：

  The ultraviolet absorption spectrum of CH2FCFHO2 radicals and the kinetics and mechanism of their reaction with NO have been studied in the gas phase at 296 K using a pulse radiolysis technique. A long path-length Fourier transform infrared technique was used to study the atmospheric fate of CH2FCFHO radicals. Absorption cross sections were quantified over the wavelength range 220-300 nm. At 240 nm, sigma(CH2FCFHO2) (3.28 +/- 0.40) x 10(-18) cm(2) molecule(-1). Errors are statistical (2 standard deviations) plus our estimate of potential systematic uncertainty (10%). Monitoring the rate of NO2 formation using a monitoring wavelength of 400 nm allowed a lower limit of kappa(3) > 8.7 x 10(-12) cm(3) molecule(-1) s(-1) to be derived for the reaction of CH2FCFHO2 radicals with NO. The alkoxy radical CH2FCFHO was found to undergo C-C bond scission rapidly with a rate greater than 6 X 10(4) s(-1). The Cl-atom-initiated oxidation of HFC-152 in air in the presence of NOx gave HC(O)F as the sole carbon-containing product. The carbon balance was 91 +/- 10%. Results are discussed with respect to the atmospheric chemistry of HFC-152. As part of the present work, a relative rate technique was used to measure rate constants of (6.7 +/- 0.8) x 10(-13) and (3.8 +/- 1.1) x 10(-11) cm(3) molecule(-1) s(-1) for the reaction of CH2FCH2F with Cl and F atoms, respectively.

  DOI：

  10.1021/j100072a008
• 作为产物：
  描述：

  1,2-二氟乙烷 在 氧气 、 氧化亚氮 、 六氟化硫 作用下， 以 gas 为溶剂， 生成 、 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  HFC-152的大气化学：CH2FCFHO2自由基的紫外吸收光谱，CH2FCFHO2 + NO反应的动力学。CH2FCHFO + NO2和烷氧基CH2FCFHO的命运

  摘要：

  The ultraviolet absorption spectrum of CH2FCFHO2 radicals and the kinetics and mechanism of their reaction with NO have been studied in the gas phase at 296 K using a pulse radiolysis technique. A long path-length Fourier transform infrared technique was used to study the atmospheric fate of CH2FCFHO radicals. Absorption cross sections were quantified over the wavelength range 220-300 nm. At 240 nm, sigma(CH2FCFHO2) (3.28 +/- 0.40) x 10(-18) cm(2) molecule(-1). Errors are statistical (2 standard deviations) plus our estimate of potential systematic uncertainty (10%). Monitoring the rate of NO2 formation using a monitoring wavelength of 400 nm allowed a lower limit of kappa(3) > 8.7 x 10(-12) cm(3) molecule(-1) s(-1) to be derived for the reaction of CH2FCFHO2 radicals with NO. The alkoxy radical CH2FCFHO was found to undergo C-C bond scission rapidly with a rate greater than 6 X 10(4) s(-1). The Cl-atom-initiated oxidation of HFC-152 in air in the presence of NOx gave HC(O)F as the sole carbon-containing product. The carbon balance was 91 +/- 10%. Results are discussed with respect to the atmospheric chemistry of HFC-152. As part of the present work, a relative rate technique was used to measure rate constants of (6.7 +/- 0.8) x 10(-13) and (3.8 +/- 1.1) x 10(-11) cm(3) molecule(-1) s(-1) for the reaction of CH2FCH2F with Cl and F atoms, respectively.

  DOI：

  10.1021/j100072a008