2,4-Hexadiene, 2,5-dimethyl-
- Formula: C8H14
- Molecular weight: 110.1968
- IUPAC Standard InChIKey: DZPCYXCBXGQBRN-UHFFFAOYSA-N
- CAS Registry Number: 764-13-6
- 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: Biisobutenyl; Biisocrotyl; Diisocrotyl; 2,5-Dimethyl-2,4-hexadiene; (CH3)2C=CHCH=C(CH3)2; 2,5-Dimethylhexa-2,4-diene; NSC 10812
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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:
LL - Sharon G. Lias and Joel F. Liebman
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 |
---|---|---|---|
7.67 | PE | Masclet, Mouvier, et al., 1981 | LLK |
7.65 | PE | Beez, Bieri, et al., 1973 | LLK |
7.91 ± 0.04 | EI | Franklin and Mogenis, 1967 | RDSH |
7.67 | PE | Werstiuk, Clark, et al., 1990 | Vertical value; LL |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H3+ | 26.5 ± 0.1 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C3H5+ | 14.27 ± 0.03 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C3H7+ | 12.23 ± 0.06 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C4H5+ | 14.60 ± 0.04 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C4H7+ | 13.03 ± 0.02 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C5H7+ | 12.88 ± 0.03 | C2H4+CH3 | EI | Franklin and Mogenis, 1967 | RDSH |
C6H5+ | 16.1 ± 0.1 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C6H7+ | 14.42 ± 0.05 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C6H9+ | 11.7 ± 0.1 | ? | EI | Franklin and Mogenis, 1967 | RDSH |
C7H11+ | 10.80 ± 0.03 | CH3 | EI | Franklin and Mogenis, 1967 | RDSH |
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.
Masclet, Mouvier, et al., 1981
Masclet, P.; Mouvier, G.; Bocquet, J.F.,
Effets electroniques et effets steriques dus a la substitution alcoyle dans les dienes conjugues,
J. Chim. Phys., 1981, 78, 99. [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]
Franklin and Mogenis, 1967
Franklin, J.L.; Mogenis, A.,
An electron impact study of ions from several dienes,
J. Phys. Chem., 1967, 71, 2820. [all data]
Werstiuk, Clark, et al., 1990
Werstiuk, N.H.; Clark, K.B.; Leigh, W.J.,
Conformational analysis and structure elucidation of 2,3-dimethyl and 2,4-dimethyl-2,4-hexadienes by AM1 and He(I) ultraviolet photoelectron spectroscopy,
Can. J. Chem., 1990, 68, 2078. [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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