Benzene, 1,4-dimethoxy-

• Formula: C₈H₁₀O₂
• Molecular weight: 138.1638
• IUPAC Standard InChI: InChI=1S/C8H10O2/c1-9-7-3-5-8(10-2)6-4-7/h3-6H,1-2H3 Copy

  
• IUPAC Standard InChIKey: OHBQPCCCRFSCAX-UHFFFAOYSA-N Copy
• CAS Registry Number: 150-78-7
• 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: Benzene, p-dimethoxy-; p-Dimethoxybenzene; Dimethylhydroquinone ether; DMB; Hydroquinone dimethyl ether; Quinol dimethyl ether; 1,4-Dimethoxybenzene; p-Methoxyanisole; Dimethyl ether hydroquinone; USAF AN-9; Anisole, p-methoxy-; Dimethylether hydrochinonu; Usaf uctl-1791; 4-Methoxyanisole; Methyl p-methoxyphenyl ether; 4-Methoxyphenol, methyl ether; 1,4-Dimethoxybenzol; Methyl 4-methoxyphenyl ether; NSC 7483; Dimethylhydroquinone; Dimethylolbenzimidazolon; 1,3-Bis(hydroxymethyl)-2-benzimidazolinone; 2-Benzimidazolinone, 1,3-bis(hydroxymethyl)-
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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  • Gas Phase Kinetics Database
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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:
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
LL - Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

Appearance energy determinations

References

Go To: Top, Gas phase ion energetics data, Notes

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

Ponomarev, Arapov, et al., 1986
Ponomarev, D.A.; Arapov, O.V.; Sergeev, Y.L.; Chistyakov, A.B., [Title unavailable], Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1986, 29, 107. [all data]

Oikawa, Abe, et al., 1985
Oikawa, A.; Abe, H.; Mikami, N.; Ito, M., Electronic spectra and ionization potentials of rotational isomers of severaldDisubstituted benzenes, Chem. Phys. Lett., 1985, 116, 50. [all data]

Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

Cooks, Bertrand, et al., 1973
Cooks, R.G.; Bertrand, M.; Beynon, J.H.; Rennekamp, M.E.; Setser, D.W., Energy partitioning data as an ion structure probe. Substituted anisoles, J. Am. Chem. Soc., 1973, 95, 1732. [all data]

Brown, 1970
Brown, P., Kinetic studies in mass spectrometry. VIII. Competing [M-CH₃] and [M-CH₂O] reactions in substituted anisoles. Approximate activation energies from ionization appearance potentials, Org. Mass Spectrom., 1970, 4, 519. [all data]

Voigt and Reid, 1964
Voigt, E.M.; Reid, C., Ionization potentials of substituted benzenes and their charge-transfer spectra with tetracyanoethylene, J. Am. Chem. Soc., 1964, 86, 3930. [all data]

Chmutova, Vtyurina, et al., 1979
Chmutova, G.A.; Vtyurina, N.N.; Komina, T.V.; Gazizov, I.G.; Bock, H., Molecular-orbital characteristics of anisole isologs X-C₆H₄-ECH₃ (E = O, S, Se) containing donor substituents X, Zh. Obshch. Khim., 1979, 49, 192. [all data]

Anderson, Kollman, et al., 1979
Anderson, G.M., III; Kollman, P.A.; Domelsmith, L.N.; Houk, K.N., Methoxy group nonplanarity in o-dimethoxybenzenes. Simple predictive models for conformations and rotational barriers in alkoxyaromatics, J. Am. Chem. Soc., 1979, 101, 2344. [all data]

Domelsmith and Houk, 1978
Domelsmith, L.N.; Houk, K.N., Photoelectron spectroscopic studies of hallucinogens: The use of ionization potentials in QSAR, NIDA Res. Monogr., 1978, 22, 423. [all data]

Klessinger, Asmus, et al., 1975
Klessinger, M.; Asmus, P.; Kraatz, U., Photoelektronenspektren organischer verbindungen-VII, Tetrahedron, 1975, 31, 517. [all data]

Bock and Wagner, 1972
Bock, H.; Wagner, G., Electron lone pairs in organic sulfides and disulfides, Angew. Chem. Int. Ed. Engl., 1972, 11, 119. [all data]

Baker, May, et al., 1968
Baker, A.D.; May, D.P.; Turner, D.W., Molecular photoelectron spectroscopy. Part VII. The vertical ionisation potentials of benzene and some of its monosubstituted and 1,4-disubstituted derivatives, J. Chem. Soc. B, 1968, 22. [all data]

Mori, Ogawa, et al., 1992
Mori, Y.; Ogawa, Y.; Shinoda, H.; Kitagawa, T., Two competing fragmentation processes in dimethoxybenzenes depending on their positional isomers: Elimination of CH₃ and CH_nO (n = 1-3) and formation of methoxycyclopentadienyl and protonated phenol ions, Org. Mass Spectrom., 1992, 27, 578. [all data]

Tait, Shannon, et al., 1962
Tait, J.M.S.; Shannon, T.W.; Harrison, A.G., The structure of substituted C₇ ions from benzyl derivatives at the appearance potential threshold, J. Am. Chem. Soc., 1962, 84, 4. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy

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