乙烷-1,1-二基 | 4218-50-2

• 分子结构分类: 有机化合物 - 碳氢化合物 - 饱和烃
• 中文名称: 乙烷-1,1-二基
• 英文名称: Methylcarben (Aethyliden)
• CAS: 4218-50-2
• 化学式: C₂H₄
• 分子量: 28.0538
• InChiKey: UUFQTNFCRMXOAE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  2
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 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：

  乙烷-1,1-二基 生成 乙烯
  参考文献：
  名称：

  Rice; Glasebrook, Journal of the American Chemical Society, 1934, vol. 56, p. 742

  摘要：

  DOI：
• 作为产物：
  描述：

  甲基乙烯酮 生成 乙烷-1,1-二基
  参考文献：
  名称：

  The Photolysis of Methyl Ketene

  摘要：

  DOI：

  10.1021/ja01567a019

文献信息

• Hydrocarbon activation by gas-phase lanthanide cations: interaction of praseodymium (Pr+), europium (Eu+), and gadolinium (Gd+) with small alkanes, cycloalkanes, and alkenes
  作者：J. Bruce. Schilling、J. L. Beauchamp

  DOI：10.1021/ja00209a002

  日期：1988.1

  reactivity. Gd/sup +/ can be thought of as having two valence electrons, and indeed it reacts similarly to Sc/sup +/ and the other group 3 metal ions Y/sup +/ and La/sup +/, yielding products corresponding to elimination of hydrogen, alkanes, and alkenes. The elimination of neutral alkenes in the reaction of Gd/sup +/ with alkanes results in the formation of metal dialkyl or hydrido-alkyl complexes. This finding

  作者描述了气相镧系元素离子、镨 (Pr/sup +/)、铕 (Eu/sup +/) 和钆 (Gd/sup +/) 与小烷烃、环烷烃、烯烃和几种含氧化合物。只有 Gd/sup +/ 可以激活烷烃的 CH 和 CC 键。Gd/sup +/ (4f/sup 7/5d/sup 1/6s/sup 1/)的基态电子构型与Pr/sup +/- (4f/sup 3/6s/sup 1/)不同和 Eu/sup +/- (4f/sup 7/6s/sup 1/)，得出的结论是 f 电子在金属离子反应性中的作用很小。Gd/sup +/ 可以认为有两个价电子，实际上它与Sc/sup +/ 和其他第3 族金属离子Y/sup +/ 和La/sup +/ 的反应类似，产生对应于消除的产物氢、烷烃和烯烃。在 Gd/sup +/ 与烷烃的反应中中性烯烃的消除导致金属二烷基或氢化烷基配合物的形成。该发现导致对介于 110 和 130
• The Ultraviolet Absorption Spectra of Gaseous Diazomethane and Diazoethane. Evidence for the Existence of Ethylidine Radicals in Diazoethane Photolysis
  作者：R. K. Brinton、D. H. Volman

  DOI：10.1063/1.1748066

  日期：1951.11

  The absorption of gaseous diazoethane begins at about 5400A, increases to a broad maximum of ε=3.5 at 4500A and falls to a minimum of ε=0.15 at 3200A. At wavelengths shorter than 3000A a second region of rapidly increasing absorption is found. The absorption curve of diazomethane is similar in general shape to this curve but shifted somewhat toward shorter wavelengths. The absorption of diazoethane is continuous over its entire region while in the visible region diazomethane shows a number of broad and very diffuse bands from about 4300A to 3200A which probably overlie a continuum. The presence of 2-butene in the photolysis products of diazoethane is explained by the combination of ethylidine radicals formed by the primary photochemical process CH3CHN2+hν→CH3CH+N2.
• The existence of methylene in hydrocarbon reactions
  作者：R. F. Barrow、T. G. Pearson、R. H. Purcell

  DOI：10.1039/tf9393500880

  日期：——
• Free Radical Formation in the Photolysis of Some Aliphatic Aldehydes, Acetone, Azomethane, and Diazoethane
  作者：D. H. Volman、P. A. Leighton、F. E. Blacet、R. K. Brinton

  DOI：10.1063/1.1747589

  日期：1950.2

  The formation of free radicals from some aldehydes, acetone, azomethane, and diazoethane was studied by use of the metallic mirror technique of Paneth. Various wave-length regions were used. Implications of the results for the mechanism of the primary process in the photolysis of the compounds are discussed.
• The Photolysis of Methyl Ketene
  作者：G. B. Kistiakowsky、Bruce H. Mahan

  DOI：10.1021/ja01567a019

  日期：1957.5