1H-Pyrrole, 2,4-dimethyl-
- Formula: C6H9N
- Molecular weight: 95.1424
- IUPAC Standard InChIKey: MFFMQGGZCLEMCI-UHFFFAOYSA-N
- CAS Registry Number: 625-82-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Pyrrole, 2,4-dimethyl-; 2,4-Dimethylpyrrole; 2,4-Dimethyl-1H-pyrrole
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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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 222.01 | J/mol*K | N/A | Steele, Chirico, et al., 1986 |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
192.19 | 298.15 | Steele, Chirico, et al., 1986 | T = 10 to 450 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 438.45 | K | N/A | Lanum and Morris, 1969 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 268.435 | K | N/A | Steele, Chirico, et al., 1986 | DH |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 268.44 | K | N/A | Chirico, Hossenlopp, et al., 1994 | Uncertainty assigned by TRC = 0.01 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.6 | 268.5 | Chirico, Hossenlopp, et al., 1994, 2 | AC |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Lanum and Morris, 1969
Lanum, W.J.; Morris, J.C.,
Physical Properties of Some Sulfur and Nitrogen Compounds,
J. Chem. Eng. Data, 1969, 14, 93-8. [all data]
Chirico, Hossenlopp, et al., 1994
Chirico, R.D.; Hossenlopp, I.A.; Gammon, B.E.; Knipmeyer, S.E.; Steele, W.V.,
Heat capacities between the temperatures 10 K and 445 K for 2,4-dimethylpyrrole and barriers to methyl-group rotation in the solid state for 2,4- and 2,5-dimethylpyrrolea,b,
J. Chem. Thermodyn., 1994, 26, 11, 1219, https://doi.org/10.1006/jcht.1994.1139
. [all data]
Chirico, Hossenlopp, et al., 1994, 2
Chirico, R.D.; Hossenlopp, I.A.; Gammon, B.E.; Knipmeyer, S.E.; Steele, W.V.,
Heat capacities between the temperatures 10 K and 445 K for 2,4-dimethylpyrrole and barriers to methyl-group rotation in the solid state for 2,4- and 2,5-dimethylpyrrolea,b,
The Journal of Chemical Thermodynamics, 1994, 26, 11, 1219-1230, https://doi.org/10.1006/jcht.1994.1139
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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