2-Imidazolidinone

• Formula: C₃H₆N₂O
• Molecular weight: 86.0925
• IUPAC Standard InChI: InChI=1S/C3H6N2O/c6-3-4-1-2-5-3/h1-2H2,(H2,4,5,6) Copy

  
• IUPAC Standard InChIKey: YAMHXTCMCPHKLN-UHFFFAOYSA-N Copy
• CAS Registry Number: 120-93-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Ethyleneurea; Imidazolid-2-one; N,N'-Ethyleneurea; SD 6073; Urea, N,N'-(1,2-Ethanediyl)-; 2-Imidazolidone; 2-Oxoimidazolidine; Urea, 1,3-ethylene-; 1,3-Ethyleneurea; Imidazoliden-2-one; NSC 21314
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of fusion

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Weinstein, Leffler, et al., 1984
Weinstein, D.I.; Leffler, A.J.; Currie, J.A., Phase Transitions in Bicyclic Compounds, Mol. Cryst. Liq. Cryst., 1984, 104, 95. [all data]

Ribeiro da Silva, Ribeiro da Silva, et al., 2008
Ribeiro da Silva, Maria das Dores M.C.; Ribeiro da Silva, Manuel A.V.; Freitas, Vera L.S.; Roux, Maria Victoria; Jiménez, Pilar; Temprado, Manuel; Dávalos, Juan Z.; Cabildo, Pilar; Claramunt, Rosa M.; Elguero, José, Structural studies of cyclic ureas: 1. Enthalpies of formation of imidazolidin-2-one and N,N´-trimethyleneurea, The Journal of Chemical Thermodynamics, 2008, 40, 3, 386-393, https://doi.org/10.1016/j.jct.2007.08.004 . [all data]

de Farias, de Oliveira, et al., 1999
de Farias, Robson F.; de Oliveira, Ótom A.; de Medeiros, José V.; Claudio Airoldi, José V., Adducts of cyclic ureas with zinc halides -- a thermochemical study, Thermochimica Acta, 1999, 328, 1-2, 241-246, https://doi.org/10.1016/S0040-6031(98)00648-0 . [all data]

Weinstein, Leffler, et al., 1984, 2
Weinstein, D.I.; Leffler, A.J.; Currie, J.A., Phase Transitions In Bicyclic Compounds, Molecular Crystals and Liquid Crystals, 1984, 104, 1-2, 95-109, https://doi.org/10.1080/00268948408070401 . [all data]

Notes

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• Symbols used in this document:
  

  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔsubH°	Enthalpy of sublimation at standard conditions

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