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Ethynol

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Not to be confused with ethanol or Vinyl alcohol.
Ethynol
Structural formula of ethynol
Structural formula of ethynol
Spacefill model of ethynol
Spacefill model of ethynol
Names
Systematic IUPAC name Ethynol
Other names Ynol, ethynyl alcohol, hydroxyacetylene
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C2H2O/c1-2-3/h1,3HKey: QFXZANXYUCUTQH-UHFFFAOYSA-N
SMILES
  • OC#C
  • C#CO
Properties
Chemical formula C2H2O
Molar mass 42.037 g·mol
Density 0.981 g·cm
Boiling point 77.1 °C (170.8 °F; 350.2 K) @ 760mmHg
Hazards
Flash point 14.7 °C (58.5 °F; 287.8 K)
Thermochemistry
Std enthalpy of
formation
fH298)
41.6 kJ mol
Related compounds
Related compounds Propargyl alcohol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). ☒verify (what is  ?) Infobox references
Chemical compound

Ethynol (or hydroxyacetylene, ethynyl alcohol) is an alkynealcohol (ynol) with the formula C2H2O. It is the much-less-stable tautomer of ethenone.

At low temperature in a solid argon matrix it is possible to tautomerise ethenone to form ethynol.

See also

References

  1. "Ethynol". The PubChem Project. USA: National Center for Biotechnology Information.
  2. Hochstrasser, Remo; Wirz, Jakob (1990). "Reversible Photoisomerisierung von Keten zu Ethinol". Angewandte Chemie. 102 (4): 454. Bibcode:1990AngCh.102..454H. doi:10.1002/ange.19901020438.
  3. Hochstrasser, Remo; Wirz, Jakob (1989). "Ethinol: Photochemische Erzeugung in einer Argonmatrix, IR-Spektrum und Photoisomerisierung zu Keten". Angewandte Chemie. 101 (2): 183. Bibcode:1989AngCh.101..183H. doi:10.1002/ange.19891010209.


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