4-Heptanone
- Formula: C7H14O
- Molecular weight: 114.1855
- IUPAC Standard InChIKey: HCFAJYNVAYBARA-UHFFFAOYSA-N
- CAS Registry Number: 123-19-3
- 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: Butyrone; Dipropyl ketone; GBL; Propyl ketone; (n-C3H7)2CO; Heptan-4-one; Di-n-propyl ketone; UN 2710; NSC 8692
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -298.3 ± 1.3 | kJ/mol | Ccb | Dubois and Herzog, 1972 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C7H13O- + =
By formula: C7H13O- + H+ = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1518. ± 10. | kJ/mol | D-EA | Zimmerman, Reed, et al., 1977 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1488. ± 11. | kJ/mol | H-TS | Zimmerman, Reed, et al., 1977 | gas phase |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.10 ± 0.04 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 845.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 815.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.04 ± 0.02 | PE | Ashmore and Burgess, 1978 | LLK |
9.10 ± 0.01 | PE | Hernandez, Masclet, et al., 1977 | LLK |
9.15 | PE | Cocksey, Eland, et al., 1971 | LLK |
9.84 | EI | Potzinger and Bunau, 1969 | RDSH |
9.12 ± 0.03 | PI | Vilesov, 1960 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H7+ | 11.80 | ? | EI | Potzinger and Bunau, 1969 | RDSH |
C4H7O+ | 10.61 | C3H7 | EI | Potzinger and Bunau, 1969 | RDSH |
De-protonation reactions
C7H13O- + =
By formula: C7H13O- + H+ = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1518. ± 10. | kJ/mol | D-EA | Zimmerman, Reed, et al., 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1488. ± 11. | kJ/mol | H-TS | Zimmerman, Reed, et al., 1977 | gas phase; B |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, 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.
Dubois and Herzog, 1972
Dubois, J.-E.; Herzog, H.,
Heats of formation of aliphatic ketones: Structure correlation based on environment treatment,
J. Chem. Soc. Chem. Commun., 1972, 932-933. [all data]
Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I.,
Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals,
J. Am. Chem. Soc., 1977, 99, 7203. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Ashmore and Burgess, 1978
Ashmore, F.S.; Burgess, A.R.,
Photoelectron spectra of the unbranched C5-C7 alkenes, aldehydes and ketones,
J. Chem. Soc. Faraday Trans. 2, 1978, 74, 734. [all data]
Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G.,
Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques,
J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]
Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J.,
The effect of alkyl substitution on ionisation potential,
J. Chem. Soc., 1971, (B), 790. [all data]
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]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔfH°gas Enthalpy of formation of gas at standard conditions 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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