α-Ionone
- Formula: C13H20O
- Molecular weight: 192.2973
- IUPAC Standard InChI: InChI=1S/C13H20O/c1-10-6-5-9-13(3,4)12(10)8-7-11(2)14/h6-8,12H,5,9H2,1-4H3/b8-7+
- IUPAC Standard InChIKey: UZFLPKAIBPNNCA-BQYQJAHWSA-N
- CAS Registry Number: 30685-95-1
- 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. - Species with the same structure:
- Other names: 3-Buten-2-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (E)-; α-Cyclocitrylideneacetone; (E)-α-Ionone; trans-α-Ionone; 3-Buten-2-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, trans; 4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one, (E)-; (3E)-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; α-(E)-Ionone; trans-4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; 3-Buten-2-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (3E)-; Ionone; 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (α-ionone); 4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one; 3-Buten-2-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (E)-(.+/-.)-
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Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°liquid | -7697.3 | kJ/mol | Ccb | Roth-Greifswald, 1911 | Heat of combustion corrected for pressure; Corresponding ΔfHºliquid = -277. kJ/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Roth-Greifswald, 1911
Roth-Greifswald, W.A.,
XVIII. Hauptversammlung der Deutschen Bunsen-Gesellschaft fur angewandte physikalische Chemie,
Z. Electrochem., 1911, 17, 789-840. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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