亚乙烯基,羰基-(9CI) | 119754-08-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 亚乙烯基,羰基-(9CI)
• 英文名称: ketenylidene
• 英文别名: carbon monocarbonyl；dicarbon monoxide；2-oxo-ethene-1,1-diyl；-carbonyl carbon；ethynolate
• CAS: 119754-08-4
• 化学式: C₂O
• 分子量: 40.0214
• InChiKey: VILAVOFMIJHSJA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 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：
  23.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  亚乙烯基,羰基-(9CI) 在 H 作用下， 生成 一氧化碳
  参考文献：
  名称：

  Schmidt, V. H.; Mesuer, R.; Horie, O., Bulletin des Societes Chimiques Belges, 1983, vol. 92, # 6-7, p. 655

  摘要：

  DOI：
• 作为产物：
  描述：

  二氧化三碳 以 neat (no solvent) 为溶剂， 生成 亚乙烯基,羰基-(9CI)
  参考文献：
  名称：

  带内 CCO 自由基的近红外二极管激光光谱

  摘要：

  摘要 CCO 自由基的 A 3 Π i (000) ← X 3 Σ − (000) 带已通过近红外高分辨率二极管激光光谱在 11 607 至 11 731 cm-1 区域重新研究多普勒限制分辨率。分析光谱以获得A 3 Π i (000)态的详细分子常数，包括Λ型倍增常数。在本研究中，在 A 3 Π i (000) 状态的 Ω = 0 和 1 能级中发现了许多扰动。

  DOI：

  10.1016/0022-2852(92)90037-o

文献信息

• The pulse radiolysis of carbon monoxide
  作者：C. Willis、C. Devillers

  DOI：10.1016/0009-2614(68)80146-0

  日期：1968.5

  Carbon monoxide has been irradiated with intense pulses of 1 MeV electrons and two transient absorption spectra have been observed. One of these consisted of a series of bands extending from 5000 – 8600Åand the second a single line 2479Å. The species giving rise to the band system is probably C2O(3Σ) and that to the single line C(1S). It is proposed that carbon atoms are not the exclusive precursors

  一氧化碳已被1 MeV电子的强脉冲照射，并观察到两个瞬态吸收光谱。其中一个由一系列从5000到8600Å的频段组成，第二个则是一条单线2479Å。物种引起的带系统是可能为C 2 O（3 Σ），并且其相单线C（1个S）。所以建议碳原子不专属前体Ç 2 O（3 Σ）在系统中，涉及电子激发的一氧化碳的反应是发生，CO * + CO→-C 20（Σ3）+ O 。
• The rate of the reactions of C2O radicals with H and H2
  作者：O. Horie、W. Bauer、R. Meuser、V.H. Schmidt、K.H. Becker

  DOI：10.1016/0009-2614(83)87286-8

  日期：1983.9

  The rate constants for the reactions C2O + H → products (1) and C2O + H2 → products (2) have been determined at room temperature by means of laser-induced fluorescence detection of C2O radicals, generated either by the KrF excimer laser photolysis Of C3O2, or by the reaction of C3O2 with O atoms. Values of k1 = (3.7 ± 1.0) × 10−11 cm3 s−1 and k2 = (7 ± 3) × 10−13 cm3 s−1 were obtained.

  反应C 2 O + H→产物（1）和C 2 O + H 2 →产物（2）的速率常数已在室温下通过激光诱导的C 2 O自由基的荧光检测确定。通过KrF准分子激光对C 3 O 2进行光解，或通过C 3 O 2与O原子的反应。获得k 1＝（3.7±1.0）×10 -11 cm 3 s -1和k 2＝（7±3）×10 -13 cm 3 s -1的值。
• Proton radiolysis of carbon monoxide
  作者：A. R. Anderson、J. V. F. Best、M. J. Willett

  DOI：10.1039/tf9666200595

  日期：——

  The radiation chemistry of CO has been studied, using principally low-energy protons from a Van de Graaff accelerator, as a function of dose rate, temperature and small amounts of additives (CO2 and O2). At dose rates higher than those used in previous work a true dose-rate inhibition effect has been found which is interpreted on the basis of competition between second-order and first-order processes. The effect of CO2 on yields is negligible at concentrations up to 0.5% by volume but initial yields are extremely sensitive to traces of O2, particularly at low dose rates. Increased temperature reduces yields of solid and increases yields of CO2, but this effect is controlled mainly by subsequent thermal decomposition of the solid. The empirical composition of the solid is unaffected by changes in dose rate, and varies from (C3O2)n at room temperature to essentially pure carbon at temperatures >450°C. Nucleation of the solid occurs predominantly in the gas phase. The relative importance of ionic and excitation processes is discussed.

  使用范德格拉夫加速器产生的主要为低能质子的辐射，研究了剂量率、温度和小量添加剂(CO2和O2)对CO的辐射化学作用。在高于先前研究中所使用的剂量率下，发现了真正的剂量率抑制效应，该效应基于二阶和一阶过程之间的竞争来解释。在体积浓度高达0.5%时，CO2对产量的影响可以忽略不计，但初始产量对微量O2极其敏感，尤其是在低剂量率下。 温度升高会降低固体产量并增加CO2产量，但这种效应主要受固体随后热分解的控制。固体的经验组成不受剂量率变化的影响，且从室温下的(C3O2)n变化到450°C以上温度时基本上为纯碳。固体的成核主要发生在气相中。讨论了离子过程和激发过程的相对重要性。
• Flash photolysis of carbon suboxide
  作者：T. Morrow、W. D. McGrath

  DOI：10.1039/tf9666203142

  日期：——

  When carbon suboxide was flash-photolyzed isothermally the ultra-violet absorption spectrum of the C3 radical at 4050 Å was observed strongly at short delay times. In addition, a series of new diffuse systems were detected in the wavelength regions 4300–4450 Å, 3400–3700 Å, 3100–3300 Å and a strong continuous absorption extending from 3100 Å to shorter wavelengths. The effect of CO2, O2, N2, Ar, NO, CO, C2H2 and C2H4 on these systems has been investigated and the results obtained indicate that the new systems are due to either the singlet C2O radical or some species produced in the fast reaction of C2O (singlet) with C3O2. The reactions of O1D and O3P with C3O2 and those of C2O (singlet) with O3, NO2 and CN have also been investigated.

  当碳亚氧化物在等温条件下闪光光解时，强烈观察到在4050 Å处C3自由基的紫外吸收光谱，尤其是在短延迟时间内。此外，在4300–4450 Å、3400–3700 Å、3100–3300 Å波长区域发现了一系列新的扩散系统，以及从3100 Å延伸到更短波长的强连续吸收。对二氧化碳、氧气、氮气、氩气、一氧化氮、一氧化碳、乙炔和乙烯对这些系统的影响进行了研究，获得的结果表明这些新系统是由于单态C2O自由基或在单态C2O与C3O2快速反应中产生的某种物质所致。同时还研究了O1D和O3P与C3O2的反应，以及单态C2O与O3、NO2和CN的反应。
• Near-infrared diode laser spectroscopy of free radicals
  作者：Nobukimi Ohashi、Masaharu Fujitake

  DOI：10.1016/j.saa.2003.11.051

  日期：2004.12

  the radicals HCSi, CCO, and FeC obtained by studying in detail energy level structures using 0.8 microm diode laser system are reported. Of these radicals, the CCO radical was investigated mainly using Fabry-Perot type diode lasers with inconvenient mode gaps in the early stage of our near-infrared diode laser spectroscopic study of free radicals, and on the other hand, the FeC and HCSi radicals were

  报告了通过详细研究0.8微米二极管激光系统的能级结构获得的HCSi，CCO和FeC自由基的光谱结果。在这些自由基中，CCO自由基主要是在我们对自由基进行近红外二极管激光光谱研究的早期阶段，使用模式间隙不方便的Fabry-Perot型二极管激光器进行了研究，另一方面，FeC和HCSi自由基是使用外腔二极管激光器进行研究。对于FeC自由基，这是一个有趣的自由基，它由具有3d电子的铁原子组成，有关三重态电子基态与低价单重态电子激发态之间自旋轨道相互作用的信息已有详细报道。对于HCSi和CCO自由基，