2-Pyrrolidinone

• Formula: C₄H₇NO
• Molecular weight: 85.1045
• IUPAC Standard InChI: InChI=1S/C4H7NO/c6-4-2-1-3-5-4/h1-3H2,(H,5,6) Copy

  
• IUPAC Standard InChIKey: HNJBEVLQSNELDL-UHFFFAOYSA-N Copy
• CAS Registry Number: 616-45-5
• 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: γ-Aminobutyrolactam; α-Pyrrolidinone; α-Pyrrolidone; γ-Aminobutyric lactam; γ-Butyrolactam; Butanoic acid, 4-amino-, lactam; Butyrolactam; Pyrrolidone; 2-Oxopyrrolidine; 2-Pyrol; 2-Pyrrolidone; 4-Aminobutyric acid lactam; Pyrrolidon; LAM; γ-Aminobutyric acid lactam; 2-Tetrahydropyrrolone; Azacyclopentan-2-one; Pyrrolidone-2; Soluphor P; NSC 4593; NSC 8413; Butanoic acid, 4-amino-; 2-Pyrol4-aminobutyric acid lactam; a-Pyrrolidinone; a-Pyrrolidone; g-Aminobutyric acid lactam; g-Aminobutyric lactam; g-Aminobutyrolactam; g-Butyrolactam; Pyrrolidone2-pyrrolidone; Pyrrolidin-2-one
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

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.

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Blumenshine and Sears, 1966
Blumenshine, R.L.; Sears, P.G., Several Properties of the 2-Pyrrolidone-Water System as Functions of Composition and Temperature, J. Chem. Eng. Data, 1966, 11, 141. [all data]

Strepikheev, Skuratov, et al., 1955
Strepikheev, A.A.; Skuratov, S.M.; Kachinskaya, O.N.; Muromova, R.S.; Brykina, E.P.; Shtekher, S.M., Dokl. Akad. Nauk SSSR, 1955, 102, 105. [all data]

Kolesov, Paukov, et al., 1962
Kolesov, V.P.; Paukov, I.E.; Skuratov, S.M., Free energy change in the polymerizations of lactams under standard conditions chloride), Zh. Fiz. Khim., 1962, 36, 770. [all data]

Morgan and Kopp, 1998
Morgan, Kathleen M.; Kopp, Daniel A., Solvent effects on the stability of simple secondary amides «8224», J. Chem. Soc., Perkin Trans. 2, 1998, 12, 2759-2764, https://doi.org/10.1039/a802717j . [all data]

Steele, Chirico, et al., 1989
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Hossenlopp, I.A.; Smith, N.K., Determination of some pure compound ideal-gas enthalpies of formation, AIChE Symp. Ser., 1989, 85, 140-162. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Kolesov, Paukov, et al., 1962, 2
Kolesov, V.P.; Paukov, I.E.; Skuratov, S.M., Free energy change in the polymerization of lactams under standard conditions [low temperature heat capacities of lactams and potassium], Zhur. Fiz. Khim., 1962, 36, 770-779. [all data]

Kolesov, Paukov, et al., 1959
Kolesov, V.P.; Paukov, I.E.; Skuratov, S.M.; Seregin, E.A., Standard entropies of certain lactams, Dokl. Akad. Nauk., 1959, SSSR 128, 130-132. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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