ketenyl radical | 51095-15-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ketenyl radical
• 英文别名: Ethynyloxy radical
• CAS: 51095-15-9
• 化学式: C₂HO
• 分子量: 41.0293
• InChiKey: QEJQAPYSVNHDJF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  3
• 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：
  1
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  ketenyl radical 在 水 作用下， 生成 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  300-600 K原子氧氧化乙炔中的酮基

  摘要：

  DOI：

  10.1021/j100249a028
• 作为产物：
  描述：

  乙炔 在 O 作用下， 以 gas 为溶剂， 287.0 ℃ 、266.64 Pa 条件下， 以59%的产率得到ketenyl radical
  参考文献：
  名称：

  乙炔与原子氧在290-540 K时基本反应的酮基自由基收率

  摘要：

  DOI：

  10.1021/j100282a027

文献信息

• FTIR study of the products of the reaction between HCCO and NO
  作者：U Eickhoff、F Temps

  DOI：10.1039/a807258b

  日期：——

  The main pathways of the reaction HCCO+NO→products (1) were investigated at room temperature in the gas phase in Ar at 570 mbar pressure by employing FTIR spectroscopy. Mixtures of NO2–C2H2–NO–Ar were photolysed under stationary conditions using a high-pressure Hg lamp at λ=312 nm. HCCO was generated in the reaction system in the reactions NO2+hν→O(3P)+NO, O(3P)+C2H2→H+HCCO. The main products of reaction (1) include CO2, CO, and HCNO. The results can be rationalised with the reaction channels HCCO+NO→HCN+CO2 (1a) and HCCO+NO→HCNO+CO (1d). The branching ratios were determined to be k1a/k1=(0.28±0.10) and k1d/k1=(0.64±0.12). Formation of HNCO could not be confirmed. Other species detected include H2O and HONO. These are formed, together with additional CO, in consecutive reactions of H atoms and OH radicals.

  在室温下，通过在570毫巴压力的氩气中使用FTIR光谱技术，研究了反应HCCO+NO→产物(1)的主要途径。在稳态条件下，使用波长为312纳米的高压汞灯对NO2-C2H2-NO-Ar混合物进行光解。HCCO通过反应NO2+hν→O(3P)+NO和O(3P)+C2H2→H+HCCO在反应系统中生成。反应(1)的主要产物包括CO2、CO和HCNO。结果可以用反应通道HCCO+NO→HCN+CO2(1a)和HCCO+NO→HCNO+CO(1d)来解释。分支比确定为k1a/k1=(0.28±0.10)和k1d/k1=(0.64±012)。未能确认HNCO的形成。检测到的其他物种包括H2O和HONO，这些是在H原子和OH自由基的连续反应中形成，同时还生成了额外的CO。
• Efficient Oxidative Decomposition of Jet-Fuel <i>exo</i>-Tetrahydrodicyclopentadiene (JP-10) by Aluminum Nanoparticles in a Catalytic Microreactor: An Online Vacuum Ultraviolet Photoionization Study
  作者：Souvick Biswas、Dababrata Paul、Nureshan Dias、Wenchao Lu、Musahid Ahmed、Michelle L. Pantoya、Ralf I. Kaiser

  DOI：10.1021/acs.jpca.3c08125

  日期：2024.3.7

  lowered by 350 and 200 K with and without AlNP, respectively, in comparison with pyrolysis of the fuel. Overall, 63 nascent gas-phase products are identified through photoionization efficiency (PIE) curves; these can be categorized as oxygenated molecules and their radicals as well as closed-shell hydrocarbons along with hydrocarbon radicals. Quantitative branching ratios of the products reveal diminishing

  利用新型化学微反应器，在 300 至 1250 K 的温度范围内探索了铝纳米颗粒 (AlNP) 上气相外型四氢二环戊二烯 (JP-10, C 10 H 16 ) 的氧化。将结果与氦种子 JP-10 和不含 AlNP 的氦氧种子 JP-10 的化学微反应器研究中获得的结果进行比较，以分别测量分子氧和 AlNP 的影响。真空紫外 (VUV) 光电离质谱分析表明，与燃料的热解相比，在有 AlNP 存在和无 AlNP 存在的情况下，JP-10 的氧化分解分别降低了 350 K 和 200 K。总体而言，通过光电离效率 (PIE) 曲线识别出 63 种新生气相产物；这些可以归类为氧化分子及其自由基以及闭壳碳氢化合物和烃自由基。产物的定量支化比表明，随着温度的升高，氧化物质的产率逐渐减少，而碳氢化合物的支化比增加。在低温状态（300–1000 K），AlNP 仅充当有效的传热介质，而在较高温度状态（1000–1250
• Becker; Heinemeyer; Horie, Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, 1983, vol. 87, # 10, p. 898 - 903
  作者：Becker、Heinemeyer、Horie

  DOI：——

  日期：——
• Ven, P. Van de; Peeters, J., Bulletin des Societes Chimiques Belges, 1990, vol. 99, # 7, p. 509 - 516
  作者：Ven, P. Van de、Peeters, J.

  DOI：——

  日期：——
• Dynamics of the reaction of O(³<i>P</i>) atoms with acetylene
  作者：X. Huang、G. Xing、R. Bersohn

  DOI：10.1063/1.467296

  日期：1994.10

  The first step in the reaction of O(3P) with HCCH is the formation of a complex, HCCHO which lives at least as long as a rotational period. The complex has two channels of dissociation, HCCO+H or 3B1CH2+CO. To find out more about this reaction the H and CO products were probed by laser-induced fluorescence. Earlier determinations that the branching ratio between the two channels is 1.4 are confirmed but it is shown that with DCCD the ratio is 0.9. This is explained by assuming that the 1,2 migration is hindered more severely by the deuteration than is the hydrogen atom dissociation. The average H atom translational energy agrees with the value of 13 kcal/mol found in Lee’s molecular beam study. The CO product of this very exothermic reaction is rotationally and vibrationally cold. The absence of rotational excitation implies a collinear transition state which is possible if the 1,2 H atom shift forms a ketene transiently in the 3B1 state.