p-Nitroaniline

• Formula: C₆H₆N₂O₂
• Molecular weight: 138.1240
• IUPAC Standard InChI: InChI=1S/C6H6N2O2/c7-5-1-3-6(4-2-5)8(9)10/h1-4H,7H2 Copy

  
• IUPAC Standard InChIKey: TYMLOMAKGOJONV-UHFFFAOYSA-N Copy
• CAS Registry Number: 100-01-6
• 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: Benzenamine, 4-nitro-; Aniline, p-nitro-; p-Aminonitrobenzene; p-Nitrophenylamine; Azoamine Red Zh; C.I. Azoic Diazo Component 37; C.I. Developer 17; C.I. 37035; Developer P; Devol Red GG; Fast Red Base GG; Fast Red Base 2J; Fast Red GG Base; Fast Red MP Base; Fast Red P Base; Fast Red 2G Base; Naphtoelan Red GG Base; Nitrazol CF extra; PNA; Red 2G Base; Shinnippon Fast Red GG Base; 1-Amino-4-nitrobenzene; 4-Nitraniline; 4-Nitroaniline; 4-Nitrobenzenamine; p-Nitraniline; Aniline, 4-nitro-; Azofix Red GG Salt; Azoic Diazo Component 37; Diazo Fast Red GG; Fast Red GG Salt; Fast Red P Salt; Fast Red Salt GG; Fast Red Salt 2J; Fast Red 2G Salt; NCI-C60786; p-Nitroanilina; Paranitroaniline; Rcra waste number P077; 4-Aminonitrobenzene; Azoamine Red 2H; NSC 9797
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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

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 by: John E. Bartmess

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

C₆H₅N₂O₂^- +  =

By formula: C₆H₅N₂O₂^- + H⁺ = C₆H₆N₂O₂

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:
B - John E. Bartmess
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 C₆H₆N₂O₂⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₆H₅N₂O₂^- +  =

By formula: C₆H₅N₂O₂^- + H⁺ = C₆H₆N₂O₂

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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Lee's RI, non-polar column, temperature ramp

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Lee's RI, non-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, Gas Chromatography, Notes

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

Nishiyama, Sakiyama, et al., 1983
Nishiyama, K.; Sakiyama, M.; Seki, S., Enthalpies of combustion of organic compounds. V. 3- and 4-nitroanilines, Bull. Chem. Soc. Jpn., 1983, 56, 3171-3172. [all data]

Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D., The Nature and Analysis of Substituent Effects, Prog. Phys. Org. Chem., 1987, 16, 1. [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]

Smith, Buonaugurio, et al., 2013
Smith, B.H.; Buonaugurio, A.; Chen, J.; Collins, E.; Bowen, K.H.; Compton, R.N.; Sommerfeld, T., Negative ions of p-nitroaniline: Photodetachment, collisions, and ab initio calculations, J. Chem. Phys., 2013, 138, 23, 234304, https://doi.org/10.1063/1.4810869 . [all data]

Huh, Kang, et al., 1999
Huh, C.; Kang, C.H.; Lee, H.W.; Nakamura, H.; Mishima, M.; Tsuno, Y.; Yamataka, H., Thermodynamic stabilities and resonance demand of aromatic radical anions in the gas phase, Bull. Chem. Soc. Japan, 1999, 72, 5, 1083-1091, https://doi.org/10.1246/bcsj.72.1083 . [all data]

Johnstone and Mellon, 1973
Johnstone, R.A.W.; Mellon, F.A., Effects of induction and resonance in the calculation of ionization potentials of substituted benzenes by perturbation molecular orbital theory, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 36. [all data]

Potapov, Kardash, et al., 1972
Potapov, V.K.; Kardash, I.E.; Sorokin, V.V.; Sokolov, S.A.; Evlasheva, T.I., Photoionization of heteroaromatic compounds, Khim. Vys. Energ., 1972, 6, 392. [all data]

Brown, 1970
Brown, P., Kinetic studies in mass spectrometry. IX. Competing [M-NO₂] and [M-NO] reactions in substituted nitrobenzenes. Approximate activation energies from ionization and appearance potentials, Org. Mass Spectrom., 1970, 4, 533. [all data]

Crable and Kearns, 1962
Crable, G.F.; Kearns, G.L., Effect of substituent groups on the ionization potentials of benzenes, J. Phys. Chem., 1962, 66, 436. [all data]

Khalil, Meeks, et al., 1973
Khalil, O.S.; Meeks, J.L.; McGlynn, S.P., Electronic spectroscopy of highly polar aromatics. VII. Photoelectron spectra of nitroanilines, J. Am. Chem. Soc., 1973, 95, 5876. [all data]

Oszczapowicz, Osek, et al., 1985
Oszczapowicz, J.; Osek, J.; Ciszkowski, K.; Krawczyk, W.; Ostrowski, M., Retention Indices of Dimethylbenzamidines and Benzylideneamines on a Non-Polar Column, J. Chromatogr., 1985, 330, 79-85, https://doi.org/10.1016/S0021-9673(01)81964-6 . [all data]

Oszczapowicz, Osek, et al., 1984
Oszczapowicz, J.; Osek, J.; Dolecka, E., Retention indices of dimethylformamidines, dimethylacetamidines and tetramethylguanidines on a non-polar column, J. Chromatogr., 1984, 315, 95-100, https://doi.org/10.1016/S0021-9673(01)90727-7 . [all data]

Donnelly, Abdel-Hamid, et al., 1993
Donnelly, J.R.; Abdel-Hamid, M.S.; Jeter, J.L.; Gurka, D.F., Application of gas chromatographic retention properties to the identification of environmental contaminants, J. Chromatogr., 1993, 642, 1-2, 409-415, https://doi.org/10.1016/0021-9673(93)80106-I . [all data]

Eckel and Kind, 2003
Eckel, W.P.; Kind, T., Use of boiling point-Lee retention index correlation for rapid review of gas chromatography-mass spectrometry data, Anal. Chim. Acta., 2003, 494, 1-2, 235-243, https://doi.org/10.1016/j.aca.2003.08.003 . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity
  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

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