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acetylenediol
Sign in to saveAlso known as ethyne-1,2-diol, ethynediol, dihydroxyacetylene
Acetylenediol, or ethynediol, is a chemical substance with formula HO−C≡C−OH (an ynol). It is the diol of acetylene. Acetylenediol is unstable in the condensed phase, although its tautomer glyoxal (CHO)2 is well known.
Chemical data
- Formula
- C2H2O2
- Molecular weight
- 58.04 g/mol
- IUPAC name
- ethyne-1,2-diol
- SMILES
- C(#CO)O
- InChIKey
- ZUQAPLKKNAQJAU-UHFFFAOYSA-N
- XLogP
- 0.4
- Polar surface area
- 40.5 Ų
- H-bond donors
- 2
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Wikidata facts
- Has part
- hydrogen
- Mass
- 58.005479
Show 3 more facts
- Commons category
- Ethynediol
- chemical formula
- C₂H₂O₂
- canonical SMILES
- C(#CO)O
Sources (2)
via Wikidata · CC0
~2 min read
Encyclopedic overview
7 sectionsContents
- Detection
- Derivatives
- Alkoxide derivatives
- Acetylenediolate salts
- Coordination complexes
- See also
- References
Acetylenediol, or ethynediol, is a chemical substance with formula HO−C≡C−OH (an ynol). It is the diol of acetylene. Acetylenediol is unstable in the condensed phase, although its tautomer glyoxal (CHO)2 is well known.
==Detection== Acetylenediol was first observed in the gas-phase by mass spectrometry. The compound was later obtained by photolysis of squaric acid in a solid argon matrix at . Recently, this molecule was synthesized in interstellar ice analogs composed of carbon monoxide (CO) and water (H2O) upon exposure to energetic electrons and detected upon sublimation by isomer-selective photoionization reflectron time-of-flight mass spectrometry.
Excerpted from Wikipedia’s “acetylenediol” article, available under the CC BY-SA 4.0 licence.