1,4-Dioxane
- Formula: C4H8O2
- Molecular weight: 88.1051
- IUPAC Standard InChIKey: RYHBNJHYFVUHQT-UHFFFAOYSA-N
- 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:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
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.
Gas phase ion energetics data
Go To: Top, Vibrational and/or electronic energy levels, References, Notes
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)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.19 ± 0.01 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 190.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 184.0 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.19 ± 0.01 | PIPECO | Fraser-Monteiro, Fraser-Monteiro, et al., 1982 | LBLHLM |
9.13 ± 0.03 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
9.4 | PE | Bieri, Asbrink, et al., 1982 | Vertical value; LBLHLM |
9.43 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
9.41 | PE | Kobayashi and Nagakura, 1973 | Vertical value; LLK |
9.3 ± 0.1 | SI | Gol'denfel'd, Korostyshevskii, et al., 1973 | Vertical value; LLK |
9.43 | PE | Sweigart and Turner, 1972 | Vertical value; LLK |
Appearance energy determinations
Vibrational and/or electronic energy levels
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: C2h Symmetry Number σ = 2
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
ag | 1 | CH2 a-str | 2968 | C | ia | 2968 S p | liq. | |||
ag | 2 | CH2 s-str | 2856 | C | ia | 2856 S p | liq. | |||
ag | 3 | CH2 scis | 1444 | C | ia | 1444 M p | liq. | |||
ag | 4 | CH2 wag | 1397 | C | ia | 1397 W p | liq. | |||
ag | 5 | CH2 twist | 1305 | C | ia | 1305 S p | liq. | |||
ag | 6 | CH2 rock | 1128 | C | ia | 1128 M p | liq. | |||
ag | 7 | CC str | 1015 | C | ia | 1015 S p | liq. | |||
ag | 8 | CO str | 837 | C | ia | 837 VS p | liq. | |||
ag | 9 | OCC deform | 435 | C | ia | 435 M | liq. | |||
ag | 10 | COC deform | 424 | C | ia | 424 M p | liq. | |||
au | 11 | CH2 a-str | 2970 | C | 2970 M | gas | ia | |||
au | 12 | CH2 s-str | 2863 | C | 2863 VS | gas | ia | |||
au | 13 | CH2 scis | 1449 | C | 1449 S | gas | ia | |||
au | 14 | CH2 wag | 1369 | C | 1369 S | gas | ia | |||
au | 15 | CH2 twist | 1256 | C | 1256 S | gas | ia | |||
au | 16 | CO str | 1136 | C | 1136 VS | gas | ia | |||
au | 17 | CH2 rock | 1086 | C | 1086 S | gas | ia | |||
au | 18 | CC str | 881 | C | 881 S | gas | ia | |||
au | 19 | OCC deform | 288 | C | 288 W sh | gas | ia | |||
bg | 20 | CH2 a-str | 2968 | C | ia | 2968 S p | liq. | SF(ν1) | ||
bg | 21 | CH2 s-str | 2856 | C | ia | 2856 S p | liq. | SF(ν2) | ||
bg | 22 | CH2 scis | 1459 | C | ia | 1459 M dp | liq. | |||
bg | 23 | CH2 wag | 1335 | C | ia | 1335 W | liq. | |||
bg | 24 | CH2 twist | 1217 | C | ia | 1217 M dp | liq. | |||
bg | 25 | CO str | 1110 | C | ia | 1110 M dp | liq. | |||
bg | 26 | CH2 rock | 853 | C | ia | 853 M sh dp | liq. | |||
bg | 27 | OCC deform | 490 | C | ia | 490 M dp | liq. | |||
bu | 28 | CH2 a-str | 2970 | C | 2970 M | gas | ia | SF(ν11) | ||
bu | 29 | CH2 a-str | 2863 | C | 2863 VS | gas | ia | SF(ν12) | ||
bu | 30 | CH2 scis | 1457 | C | 1457 S | gas | ia | |||
bu | 31 | CH2 wag | 1378 | C | 1378 M | gas | ia | |||
bu | 32 | CH2 twist | 1291 | C | 1291 S | gas | ia | |||
bu | 33 | CH2 rock | 1052 | C | 1052 S | gas | ia | |||
bu | 34 | CO str | 889 | C | 889 S | gas | ia | |||
bu | 35 | OCC deform | 610 | C | 610 S | gas | ia | |||
bu | 36 | COC deform | 274 | C | 274 S | gas | ia | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
sh | Shoulder |
p | Polarized |
dp | Depolarized |
SF | Calculation shows that the frequency approximately equals that of the vibration indicated in the parentheses. |
C | 3~6 cm-1 uncertainty |
References
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Fraser-Monteiro, Fraser-Monteiro, et al., 1982
Fraser-Monteiro, M.L.; Fraser-Monteiro, L.; Butler, J.J.; Baer, T.; Hass, J.R.,
Thermochemistry and dissociation dynamics of state-selected C4H8O2+ ions. 1. 1,4-Dioxane,
J. Phys. Chem., 1982, 86, 739. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Bieri, Asbrink, et al., 1982
Bieri, G.; Asbrink, L.; Von Niessen, W.,
30.4-nm He(II) photoelectron spectra of organic molecules,
J. Electron Spectrosc. Relat. Phenom., 1982, 27, 129. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Kobayashi and Nagakura, 1973
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of tetrahydropyran, 1,3-dioxane, and 1,4-dioxane,
Bull. Chem. Soc. Jpn., 1973, 46, 1558. [all data]
Gol'denfel'd, Korostyshevskii, et al., 1973
Gol'denfel'd, I.V.; Korostyshevskii, I.Z.; Mischanchuk, B.G.; Pokrovskii, V.A.,
Determination of ionization potentials of atoms and molecules using a field mass spectrometer equipped with an energy analyzer,
Dokl. Akad. Nauk SSSR, 1973, 213, 626. [all data]
Sweigart and Turner, 1972
Sweigart, D.A.; Turner, D.W.,
Lone pair orbitals and their interactions studied by photoelectron spectroscopy. II. Equivalent orbitals in saturated oxygen and sulfur J. Heterocycl. Chem.,
J. Am. Chem. Soc., 1972, 94, 5599. [all data]
Collin and Conde, 1966
Collin, J.E.; Conde, G.,
L'ionisation et la dissociation des polyethers cycliques soumis a l'impact electronique,
Bull. Classe Sci. Acad. Roy. Belg., 1966, 52, 978. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy - 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.