Propiolic acid
- Formula: C3H2O2
- Molecular weight: 70.0468
- IUPAC Standard InChI: InChI=1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)
- IUPAC Standard InChIKey: UORVCLMRJXCDCP-UHFFFAOYSA-N
- CAS Registry Number: 471-25-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: HC≡CCOOH; Acetylenecarboxylic acid; Propynoic acid; 2-Propynoic acid; Carboxyacetylene; Propargylic acid; Propinoic acid
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Gas phase ion energetics data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.45 | PE | Von Niessen, Bieri, et al., 1980 | LLK |
| 10.9 | PE | Von Niessen, Bieri, et al., 1980 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C2H2O+[HCCOH+] | 11.4 ± 0.2 | CO | EI | Van Baar, Weiske, et al., 1986 | LBLHLM |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Von Niessen, Bieri, et al., 1980
Von Niessen, W.; Bieri, G.; Asbrink, L.,
30.4 nm He(II) photoelectron spectra of organic molecules. Part III. Oxo-compounds (C,H,O),
J. Electron Spectrosc. Relat. Phenom., 1980, 21, 175. [all data]
Van Baar, Weiske, et al., 1986
Van Baar, B.; Weiske, T.; Terlouw, J.; Schwarz, H.,
Hydroxyacetylene: Generation and characterization of the neutral molecule, radical cation and dication in the gas phase,
Angew. Chem. Int. Ed. Engl., 1986, 25, 282. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.