2-Pyrrolidinone, 1-methyl-
- Formula: C5H9NO
- Molecular weight: 99.1311
- IUPAC Standard InChI: InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3
- IUPAC Standard InChIKey: SECXISVLQFMRJM-UHFFFAOYSA-N
- CAS Registry Number: 872-50-4
- 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: M-Pyrol; N-Methyl-α-pyrrolidinone; N-Methyl-α-pyrrolidone; N-Methyl-γ-butyrolactam; N-Methyl-2-pyrrolidinone; N-Methyl-2-pyrrolidone; N-Methylpyrrolidinone; N-Methylpyrrolidone; NMP; 1-Methyl-2-Pyrrolidinone; 1-Methyl-2-pyrrolidone; 1-Methyl-5-pyrrolidinone; 1-Methylpyrrolidinone; 2-Pyrrolidone, 1-methyl-; 1-Methylazacyclopentane-2-one; 1-Methylpyrrolidone; N-Methylpyrrolidone-(2); N-Methylpyrrolid-2-one; Methylpyrrolidone; 1-Methylazacyclopentan-2-one; Agsolex 1; N 0131; N-Methyl-gamma-butyrolactam; Micropure ultra; NSC 4594
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Condensed phase thermochemistry 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:
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 | -63.51 ± 0.13 | kcal/mol | Ccr | Steele, Chirico, et al., 1990 | Author was aware that data differs from previously reported values; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -714.16 ± 0.11 | kcal/mol | Ccr | Steele, Chirico, et al., 1990 | Author was aware that data differs from previously reported values; ALS |
| ΔcH°liquid | -715.0 ± 0.1 | kcal/mol | Ccb | Kozina and Skuratov, 1959 | ALS |
| ΔcH°liquid | -715.6 | kcal/mol | Ccb | Skuratov, Kozina, et al., 1958 | ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 98.57 | 298.15 | Steele, Chirico, et al., 1990 | DH |
| 73.57 | 298. | Marchidan and Ciopec, 1978 | T = 298 to 461 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.
Steele, Chirico, et al., 1990
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Hossenlopp, I.A.; Smith, N.K.,
Determination of ideal-gas enthalpies of formation for key compounds,
Am. Inst. Chem. Eng. Symp. Ser. (AIChE Symp. Ser.), 1990, 138-154. [all data]
Kozina and Skuratov, 1959
Kozina, M.P.; Skuratov, S.M.,
The enthalphy of polymerization of N-substituted lactames,
Dokl. Akad. Nauk SSSR, 1959, 127, 561-563. [all data]
Skuratov, Kozina, et al., 1958
Skuratov, S.M.; Kozina, M.P.; Shtocher, S.M.; Prevalova, N.M.; Kamkina, L.S.; Zuko, V.D.,
Heats of combustion of cyclic compounds,
Bull. Chem. Thermodyn., 1958, 1, 21. [all data]
Marchidan and Ciopec, 1978
Marchidan, D.I.; Ciopec, M.,
Relative enthalpies and related thermodynamic functions of some organic compounds by drop calorimetry,
J. Therm. Anal., 1978, 14, 131-150. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid 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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