4H-Pyran
- Formula: C5H6O
- Molecular weight: 82.1005
- IUPAC Standard InChI: InChI=1S/C5H6O/c1-2-4-6-5-3-1/h2-5H,1H2
- IUPAC Standard InChIKey: MRUWJENAYHTDQG-UHFFFAOYSA-N
- CAS Registry Number: 289-65-6
- Chemical structure:
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Gas phase ion energetics data
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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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.40 | EI | Spilker and Grutzmacher, 1986 | LBLHLM |
| 8.38 ± 0.02 | PE | Bloch, Brogli, et al., 1978 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C5H5O+ | 9.91 | H | EI | Spilker and Grutzmacher, 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.
Spilker and Grutzmacher, 1986
Spilker, R.; Grutzmacher, H.-F.,
Isomerization and fragmentation of methylfuran ions and pyran ions in the gas phase,
Org. Mass Spectrom., 1986, 21, 459. [all data]
Bloch, Brogli, et al., 1978
Bloch, M.; Brogli, F.; Heilbronner, E.; Jones, T.B.; Prinzbach, H.; Schweikert, O.,
138. Photoelectron spectra of unsaturated oxides. I. 1,4- dioxin and related systems,
Helv. Chim. Acta, 1978, 61, 1388. [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
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