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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, 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, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
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, Phase change data, References
- Symbols used in this document:
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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.