Chemistry:Azomethane

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Azomethane
(Z)-Azomethane.svg
(E)-Azomethane.svg
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 685-709-9
Properties
C2H6N2
Molar mass 58.084 g·mol−1
Appearance colourless to pale yellow gas[1]
Melting point −78 °C (trans)[2]
−66 °C (cis)[2]
Boiling point 1.5 °C (trans)[2]
95 °C (cis)[2]
Hazards
GHS pictograms GHS02: FlammableGHS04: Compressed Gas
GHS Signal word Danger
H220, H280
P203Script error: No such module "Preview warning".Category:GHS errors, P210, P222, P280, P377, P381, P403, P410+403
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Azomethane is an organic compound with the chemical formula CH3-N=N-CH3. It exhibits cis-trans isomerism. It can be produced by the reaction of 1,2-dimethylhydrazine dihydrochloride with copper(II) chloride in sodium acetate solution. The reaction produces the azomethane complex of copper(I) chloride, which can produce free azomethane by thermal decomposition.[4] It is the source of methyl radical in laboratory.[5]

CH3-N=N-CH3 → 2 CH3· + N2

References

  1. Azomethan Lexikon der Chemie
  2. 2.0 2.1 2.2 2.3 Ackermann, Martin N.; Craig, Norman C.; Isberg, Ralph R.; Lauter, David M.; MacPhail, Richard A.; Young, William G. (1977). "cis-Dimethyldiazene". Journal of the American Chemical Society 99 (5): 1661–1663. doi:10.1021/ja00447a072. ISSN 0002-7863. 
  3. "Azomethane" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/10421#section=Safety-and-Hazards. 
  4. Francis P. Jahn (September 1937). "The Preparation of Azomethane" (in en). Journal of the American Chemical Society 59 (9): 1761–1762. doi:10.1021/ja01288a502. ISSN 0002-7863. https://pubs.acs.org/doi/abs/10.1021/ja01288a502. Retrieved 2022-10-23. 
  5. Zhai, Run-Sheng; Chan, Yuet Loy; Chuang, Ping; Hsu, Chien-Kui; Mukherjee, Manabendra; Chuang, Tung J.; Klauser, Ruth (2004-04-01). "Chemisorption and Reaction Characteristics of Methyl Radicals on Cu(110)". Langmuir: The ACS Journal of Surfaces and Colloids 20 (9): 3623–3631. doi:10.1021/la036294u. ISSN 0743-7463. PMID 15875392. 

Further reading