1,4-Dioxane

• Formula: C₄H₈O₂
• Molecular weight: 88.1051
• IUPAC Standard InChI: InChI=1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2 Copy

  
• IUPAC Standard InChIKey: RYHBNJHYFVUHQT-UHFFFAOYSA-N Copy
• CAS Registry Number: 123-91-1
• 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: p-Dioxane; p-Dioxan; Di(ethylene oxide); Diethylene dioxide; Diethylene ether; Dioxan; Dioxane; Dioxyethylene ether; 1,4-Diethylene dioxide; 1,4-Dioxan; 1,4-Dioxacyclohexane; Glycol ethylene ether; Tetrahydro-p-dioxin; Diokan; Dioksan; Diossano-1,4; Dioxaan-1,4; Dioxan-1,4; Dioxane-1,4; Dioxanne; NCI-C03689; Tetrahydro-1,4-dioxin; p-Dioxin, tetrahydro-; Rcra waste number U108; UN 1165; 1,4-Dioxin, tetrahydro-; 1,4-Diethyleneoxide; Glycol ethylene ether 8; NE 220; NSC 8728
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Reaction 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₃H₇O⁺ +  = (C₃H₇O⁺ • )

By formula: C₃H₇O⁺ + C₄H₈O₂ = (C₃H₇O⁺ • C₄H₈O₂)

Bond type: Hydrogen bonds of the type OH-O between organics

C₄H₉O₂⁺ +  = (C₄H₉O₂⁺ • )

By formula: C₄H₉O₂⁺ + C₄H₈O₂ = (C₄H₉O₂⁺ • C₄H₈O₂)

Bond type: Hydrogen bonds of the type OH-O between organics

 +  = ( • )

By formula: Na⁺ + C₄H₈O₂ = (Na⁺ • C₄H₈O₂)

Free energy of reaction

Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₄H₈O₂⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

Ion clustering 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₃H₇O⁺ +  = (C₃H₇O⁺ • )

By formula: C₃H₇O⁺ + C₄H₈O₂ = (C₃H₇O⁺ • C₄H₈O₂)

Bond type: Hydrogen bonds of the type OH-O between organics

C₄H₉O₂⁺ +  = (C₄H₉O₂⁺ • )

By formula: C₄H₉O₂⁺ + C₄H₈O₂ = (C₄H₉O₂⁺ • C₄H₈O₂)

Bond type: Hydrogen bonds of the type OH-O between organics

 +  = ( • )

By formula: Na⁺ + C₄H₈O₂ = (Na⁺ • C₄H₈O₂)

Free energy of reaction

Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, temperature ramp

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Kovats' RI, polar column, isothermal

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Kovats' RI, polar column, temperature ramp

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Kovats' RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, isothermal

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, Notes

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

Bystrm and Mansson, 1982
Bystrm, K.; Mansson, M., Enthalpies of formation of some cyclic 1,3- and 1,4-Di- and poly-ethers: Thermochemical strain in the -O-C-O and -O-C-C-O- groups, J. Chem. Soc. Perkin Trans. 2, 1982, 565. [all data]

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Snelson and Skinner, 1961
Snelson, A.; Skinner, H.A., Heats of combustion: sec-propanol, 1,4-dioxan, 1,3-dioxan and tetrahydropyran, Trans. Faraday Soc., 1961, 57, 2125-2131. [all data]

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Stull D.R., Jr., The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]

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Dutoit, J., Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases, J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X . [all data]

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Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Cp,gas	Constant pressure heat capacity of gas
  IE (evaluated)	Recommended ionization energy
  S°gas	Entropy of gas at standard conditions
  T	Temperature
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

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