1,3,5-Heptatriene, (E,E)-
- Formula: C7H10
- Molecular weight: 94.1543
- IUPAC Standard InChIKey: USKZHEQYENVSMH-YDFGWWAZSA-N
- CAS Registry Number: 17679-93-5
- 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. - Stereoisomers:
- Other names: All-trans-1,3,5-Heptatriene; (E,E)-CH2=CHCH=CHCH=CHCH3; trans,trans-1,3,5-Heptatriene; (3E,5E)-1,3,5-Heptatriene; (E,E)-1,3,5-heptatriene
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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
View reactions leading to C7H10+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.96 ± 0.02 | PE | Allan, Dannacher, et al., 1980 | LLK |
8.07 | PE | Beez, Bieri, et al., 1973 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5+ | 12.3 ± 0.15 | ? | PE | Allan, Dannacher, et al., 1980 | LLK |
C7H7+ | 12.2 ± 0.15 | ? | PE | Allan, Dannacher, et al., 1980 | LLK |
C7H8+ | 12.4 ± 0.15 | ? | PE | Allan, Dannacher, et al., 1980 | LLK |
De-protonation reactions
C7H9- + =
By formula: C7H9- + H+ = C7H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1526. ± 13. | kJ/mol | D-EA | Zimmerman, Gygax, et al., 1978 | gas phase; Acid: 1,3,5-heptatriene; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1500. ± 14. | kJ/mol | H-TS | Zimmerman, Gygax, et al., 1978 | gas phase; Acid: 1,3,5-heptatriene; 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.
Allan, Dannacher, et al., 1980
Allan, M.; Dannacher, J.; Maier, J.P.,
Radiative and fragmentation decay of the cations of trans- and cis 1,3,5-hexatriene of all trans-1,3,5-heptatriene in the A(π-1) states, studied by emission photoelectron-photoion coincidence spectroscopy,
J. Chem. Phys., 1980, 73, 3114. [all data]
Beez, Bieri, et al., 1973
Beez, M.; Bieri, G.; Bock, H.; Heilbronner, E.,
The ionization potentials of butadiene, hexatriene, andtheir methyl derivatives: evidence for through space interaction between double bond π-orbitals and non-bonded pseudo-π orbitals of methyl groups?,
Helv. Chim. Acta, 1973, 56, 1028. [all data]
Zimmerman, Gygax, et al., 1978
Zimmerman, A.H.; Gygax, R.; Brauman, J.I.,
Electron photodetachment spectroscopy of polyene anions. Electron affinities of pentadienyl and heptatrienyl radicals,
J. Am. Chem. Soc., 1978, 100, 5595. [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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