Pyridine, 2,3-dimethyl-
- Formula: C7H9N
- Molecular weight: 107.1531
- IUPAC Standard InChI: InChI=1S/C7H9N/c1-6-4-3-5-8-7(6)2/h3-5H,1-2H3
- IUPAC Standard InChIKey: HPYNZHMRTTWQTB-UHFFFAOYSA-N
- CAS Registry Number: 583-61-9
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2,3-Lutidine; 2,3-Dimethylpyridine
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Gas 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: Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 68.3 | kJ/mol | N/A | Cox and Gundry, 1958 | Value computed using ΔfHliquid° value of 19.3 kj/mol from Cox and Gundry, 1958 and ΔvapH° value of 48.95 kj/mol from missing citation. |
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 | 19.3 | kJ/mol | Ccb | Cox and Gundry, 1958 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -4060.2 | kJ/mol | Ccb | Cox and Gundry, 1958 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 243.70 | J/mol*K | N/A | Steele, Chirico, et al., 1986 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 189.55 | 298.15 | Steele, Chirico, et al., 1986 | T = 10 to 450 K.; DH |
References
Go To: Top, Gas phase thermochemistry data, 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.
Cox and Gundry, 1958
Cox, J.D.; Gundry, H.A.,
Heats of combustion. Part II. The six lutidines,
J. Chem. Soc., 1958, 1019-1022. [all data]
Steele, Chirico, et al., 1986
Steele, W.V.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Strube, M.M.,
Thermochemical and thermophysical properties of organic nitrogen compounds found in fossil materials,
NIPER Report, 1986, 188, 112p. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, 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°gas Enthalpy of formation of gas 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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