2-Octanone
- Formula: C8H16O
- Molecular weight: 128.2120
- IUPAC Standard InChIKey: ZPVFWPFBNIEHGJ-UHFFFAOYSA-N
- CAS Registry Number: 111-13-7
- 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: n-Hexyl methyl ketone; Hexyl methyl ketone; Methyl hexyl ketone; Methyl n-hexyl ketone; Octan-2-one; n-C6H13COCH3; Octanone-2
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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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.75 | EI | Potzinger and Bunau, 1969 | RDSH |
9.40 ± 0.03 | PI | Vilesov, 1960 | RDSH |
9.38 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H3O+ | 12.04 | ? | EI | Potzinger and Bunau, 1969 | RDSH |
C6H13+ | 10.21 | ? | EI | Potzinger and Bunau, 1969 | RDSH |
C7H13O+ | 9.85 | CH3 | EI | Potzinger and Bunau, 1969 | RDSH |
De-protonation reactions
C8H15O- + =
By formula: C8H15O- + H+ = C8H16O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 364.4 ± 2.1 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 357.5 ± 2.1 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase; B |
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.
Potzinger and Bunau, 1969
Potzinger, P.; Bunau, G.v.,
Empirische Beruksichtigung von Uberschussenergien bei der Auftrittspotentialbestimmung,
Ber. Bunsen-Ges. Phys. Chem., 1969, 73, 466. [all data]
Vilesov, 1960
Vilesov, F.I.,
The photoionization of vapors of compounds whose molecules contain carbonyl groups,
Dokl. Phys. Chem., 1960, 132, 521, In original 1332. [all data]
Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G.,
Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
J. Am. Chem. Soc., 1977, 99, 3980. [all data]
Burkell, Fridgen, et al., 2003
Burkell, J.L.; Fridgen, T.D.; McMahon, T.B.,
Gas-phase acidities and sites of deprotonation of 2-ketones and structures of the corresponding enolates,
Int. J. Mass Spectrom., 2003, 227, 3, 497-508, https://doi.org/10.1016/S1387-3806(03)00102-7
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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