1,4-Dioxane

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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)

Quantity Value Units Method Reference Comment
IE (evaluated)9.19 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)190.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity184.0kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.19 ± 0.01PIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982LBLHLM
9.13 ± 0.03PIWatanabe, Nakayama, et al., 1962RDSH
9.4PEBieri, Asbrink, et al., 1982Vertical value; LBLHLM
9.43PEKimura, Katsumata, et al., 1981Vertical value; LLK
9.41PEKobayashi and Nagakura, 1973Vertical value; LLK
9.3 ± 0.1SIGol'denfel'd, Korostyshevskii, et al., 1973Vertical value; LLK
9.43PESweigart and Turner, 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHO+11.60 ± 0.10C3H7OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
CH2O+11.41 ± 0.05C3H6OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
CH3O+11.35 ± 0.10C3H5OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C2H3O+11.96 ± 0.10C2H5OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C2H3O+12.92?EICollin and Conde, 1966RDSH
C2H4+11.90 ± 0.102CH2O/C2H4O2PIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C2H4O+10.39 ± 0.05C2H4OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C2H4O+10.90?EICollin and Conde, 1966RDSH
C2H5O+10.46 ± 0.05C2H3OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C3H5O+11.20 ± 0.10CH3OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C3H6O+10.65CH2OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 0K; LBLHLM
C3H6O+10.56 ± 0.10CH2OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K; LBLHLM
C3H6O+11.CH2OEICollin and Conde, 1966RDSH
C4H7O2+10.95HEICollin and Conde, 1966RDSH

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. SF1)
bg 21 CH2 s-str 2856  C  ia 2856 S p liq. SF2)
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 SF11)
bu 29 CH2 a-str 2863  C 2863 VS gas  ia SF12)
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

VSVery strong
SStrong
MMedium
WWeak
iaInactive
shShoulder
pPolarized
dpDepolarized
SFCalculation shows that the frequency approximately equals that of the vibration indicated in the parentheses.
C3~6 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