Benzene, nitroso-

• Formula: C₆H₅NO
• Molecular weight: 107.1100
• IUPAC Standard InChI: InChI=1S/C6H5NO/c8-7-6-4-2-1-3-5-6/h1-5H Copy

  
• IUPAC Standard InChIKey: NLRKCXQQSUWLCH-UHFFFAOYSA-N Copy
• CAS Registry Number: 586-96-9
• 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: Nitrosobenzene
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • References
  • Notes
• 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Condensed 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

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:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

 +  = ( • )

By formula: Br^- + C₆H₅NO = (Br^- • C₆H₅NO)

= 2

By formula: C₁₂H₁₀N₂O₂ = 2C₆H₅NO

= 2

By formula: C₁₂H₁₀N₂O₂ = 2C₆H₅NO

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

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

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 by: John E. Bartmess

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

 +  = ( • )

By formula: Br^- + C₆H₅NO = (Br^- • C₆H₅NO)

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLUTION (CCl4 FOR 3800-1330, CS2 FOR 1330-450 CM^-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm^-1 resolution

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

• gas; HP-GC/MS/IRD

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

UV/Visible spectrum

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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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

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.

Choo, Golden, et al., 1975
Choo, K.Y.; Golden, D.M.; Benson, S.W., Very-low-pressure pyrolysis of nitroso- and pentafluoronitrosobenzene C-NO bond dissociation energies, Int. J. Chem. Kinet., 1975, 7, 713-724. [all data]

Drucker and Flade, 1930
Drucker, C.; Flade, Th., Das Molargewicht des nitrosobenzols in fester losung, Z. Phys. Chem. (Leipzig), 1930, 29, 29-42. [all data]

Bruhl, 1897
Bruhl, J.W., Spectrochemistry of nitrogen containing compounds V, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1897, 22, 373. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Pepekin, Lebedev, et al., 1974
Pepekin, V.I.; Lebedev, V.P.; Balepin, A.A.; Lebedev, Y.A., Dokl. Akad. Nauk SSSR, 1974, 221, 1118. [all data]

Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P., Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-, J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014 . [all data]

Orrell, Stephenson, et al., 1989
Orrell, K.G.; Stephenson, D.; Rault, T., NMR study of the monomer-dimer equilibria of dimethylnitrosobenzenes in solution. Identification of mixed azodioxy dimeric species, Magn. Reson. Chem., 1989, 27, 368-376. [all data]

Orrell, Sik, et al., 1987
Orrell, K.G.; Sik, V.; Stephenson, D., Study of the monomer-dimer equilibrium of nitrosobenzene using multinuclear one- and two-dimensional NMR techniques, Magn. Reson. Chem., 1987, 25, 1007-1011. [all data]

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]

Egdell, Green, et al., 1975
Egdell, R.; Green, J.C.; Rao, C.N.R., Photoelectron spectra of substituted benzenes, Chem. Phys. Lett., 1975, 33, 600. [all data]

Rabalais and Colton, 1973
Rabalais, J.W.; Colton, R.J., Electronic interaction between the phenyl group and its unsaturated substituents, J. Electron Spectrosc. Relat. Phenom., 1973, 1, 83. [all data]

Rao, 1975
Rao, C.N.R., Lone-pair ionization bands of chromophores in the photoelectron spectra of organic molecules, Indian J. Chem., 1975, 13, 950. [all data]

Egdell, Green, et al., 1975, 2
Egdell, R.; Green, J.C.; Rao, C.N.R.; Gowenlock, B.G.; Pfab, J., He(I) photoelectron studies of C-nitroso compounds, J. Chem. Soc. Faraday Trans. 2, 1975, 988. [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]

Carmichael, Gowenlock, et al., 1972
Carmichael, P.J.; Gowenlock, B.G.; Johnson, C.A.F., Carbon-nitrogen bond dissociation energy values in C-nitrosocompounds, Int. J. Chem. Kinet., 1972, 4, 339. [all data]

Ramart-Lucas, Martynoff, et al., 1949
Ramart-Lucas, P.; Martynoff, M.M.; Grumez, M.; Chauvin, M., Sur la natrue de l'isomerie des nitrosophenols d'apres leurs spectres d'absorption (Quatrieme Memoire: Derives acyles), Bull. Soc. Chim. Fr., 1949, 16, 905-917. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Tfus	Fusion (melting) point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  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
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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