2H-1-Benzopyran, 3,4-dihydro-
- Formula: C9H10O
- Molecular weight: 134.1751
- IUPAC Standard InChI: InChI=1S/C9H10O/c1-2-6-9-8(4-1)5-3-7-10-9/h1-2,4,6H,3,5,7H2
- IUPAC Standard InChIKey: VZWXIQHBIQLMPN-UHFFFAOYSA-N
- CAS Registry Number: 493-08-3
- 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: Chroman; 3,4-Dihydro-2H-1-benzopyran; Benzopyran, 3,4-dihydro; Dihydrobenzopyran
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -33.25 ± 0.29 | kcal/mol | Ccb | Chirico, Archer, et al., 1990 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1154.79 ± 0.22 | kcal/mol | Ccb | Chirico, Archer, et al., 1990 | Corresponding ΔfHºliquid = -33.248 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 58.7997 | cal/mol*K | N/A | Chirico, Archer, et al., 1990 | DH |
| S°liquid | 58.803 | cal/mol*K | N/A | Chirico, Nguyen, et al., 1986 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 51.1391 | 298.15 | Chirico, Archer, et al., 1990 | T = 10 to 500 K.; DH |
| 51.147 | 298.15 | Chirico, Nguyen, et al., 1986 | T = 10 to 450 K.; DH |
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.
Chirico, Archer, et al., 1990
Chirico, R.D.; Archer, D.G.; Hossenlopp, I.A.; Nguyen, A.; Steele, W.V.; Gammon, B.E.,
The thermodynamic properties of chroman and isochroman,
J. Chem. Thermodyn., 1990, 22, 665-682. [all data]
Chirico, Nguyen, et al., 1986
Chirico, R.D.; Nguyen, A.; Steele, W.V.; Strube, M.M.; Hossenlopp, I.A.; Gammon, B.E.,
Thermochemical and thermophysical properties of organic compounds derived from fossil substances. Chemical thermodynamic properties of organic oxygen compounds found in fossil materials,
NIPER Report, 1986, 135, 42p. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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