Aniline

Data at NIST subscription sites:

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 thermochemistry data

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas20.80 ± 0.21kcal/molCcbHatton, Hildenbrand, et al., 1962ALS
Δfgas19.7kcal/molCcbVriens and Hill, 1952ALS
Δfgas19.9kcal/molN/ACole and Gilbert, 1951Value computed using ΔfHliquid° value of 30.8 kj/mol from Cole and Gilbert, 1951 and ΔvapH° value of 52.4 kj/mol from Vriens and Hill, 1952.; DRB
Δfgas19.3 ± 0.6kcal/molCcbAnderson and Gilbert, 1942%hf calculated possible error by author; ALS
Δfgas20.4kcal/molN/ALemoult, 1907Value computed using ΔfHliquid° value of 33.0 kj/mol from Lemoult, 1907 and ΔvapH° value of 52.4 kj/mol from Vriens and Hill, 1952.; DRB

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), References, Notes

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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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

Bromine anion + Aniline = (Bromine anion • Aniline)

By formula: Br- + C6H7N = (Br- • C6H7N)

Quantity Value Units Method Reference Comment
Δr14.6 ± 1.8kcal/molIMREPaul and Kebarle, 1991gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B,M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr6.1 ± 1.0kcal/molIMREPaul and Kebarle, 1991gas phase; ΔGaff measured at 423 K, ΔSaff taken as that of PhNO2..Br-; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.1423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

C6H6N- + Hydrogen cation = Aniline

By formula: C6H6N- + H+ = C6H7N

Quantity Value Units Method Reference Comment
Δr368.18 ± 0.30kcal/molD-EAWren, Vogelhuber, et al., 2012gas phase; B
Δr366.4 ± 2.1kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr360.91 ± 0.67kcal/molH-TSWren, Vogelhuber, et al., 2012gas phase; B
Δr359.1 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B

C9H13N+ + Aniline = (C9H13N+ • Aniline)

By formula: C9H13N+ + C6H7N = (C9H13N+ • C6H7N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr13.3kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr(26.)cal/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.9283.PHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C7H9N+ + Aniline = (C7H9N+ • Aniline)

By formula: C7H9N+ + C6H7N = (C7H9N+ • C6H7N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr16.7kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr9.0kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C8H11N+ + Aniline = (C8H11N+ • Aniline)

By formula: C8H11N+ + C6H7N = (C8H11N+ • C6H7N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr14.2kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr6.5kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Fluorine anion + Aniline = (Fluorine anion • Aniline)

By formula: F- + C6H7N = (F- • C6H7N)

Quantity Value Units Method Reference Comment
Δr31.2 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.2cal/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
Δr23.4 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M

C6H7N+ + Aniline = (C6H7N+ • Aniline)

By formula: C6H7N+ + C6H7N = (C6H7N+ • C6H7N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr17.5kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr24.6cal/mol*KPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M

Aniline + Phthalic anhydride = Benzoic acid, 2-[(phenylamino)carbonyl]-

By formula: C6H7N + C8H4O3 = C14H11NO3

Quantity Value Units Method Reference Comment
Δr-12.8kcal/molKinKalnin'sh, 1988liquid phase; solvent: Acetonitrile; ALS
Δr-13.0kcal/molKinPravednikov, Kardash, et al., 1973solid phase; solvent: Tetrahydrofuran; ALS

Aniline, N-methyl- = 0.5Benzenamine, N,N-dimethyl- + 0.5Aniline

By formula: C7H9N = 0.5C8H11N + 0.5C6H7N

Quantity Value Units Method Reference Comment
Δr-0.8kcal/molEqkMatvienko, Kachurin, et al., 1982liquid phase; Methansulfonic acid; ALS
Δr-0.9kcal/molKinKachurin, Matvienko, et al., 1979liquid phase; ALS

Potassium ion (1+) + Aniline = (Potassium ion (1+) • Aniline)

By formula: K+ + C6H7N = (K+ • C6H7N)

Quantity Value Units Method Reference Comment
Δr22.8kcal/molHPMSDavidson and Kebarle, 1976gas phase; M
Quantity Value Units Method Reference Comment
Δr23.7cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; M

Benzoyl iodide + Aniline = Hydrogen iodide + Benzamide, N-phenyl-

By formula: C7H5IO + C6H7N = HI + C13H11NO

Quantity Value Units Method Reference Comment
Δr-39.7 ± 0.5kcal/molCacKiselev, Khuzyasheva, et al., 1979liquid phase; solvent: Benzene; ALS

Benzoyl bromide + Aniline = Hydrogen bromide + Benzamide, N-phenyl-

By formula: C7H5BrO + C6H7N = HBr + C13H11NO

Quantity Value Units Method Reference Comment
Δr-38.6 ± 0.2kcal/molCacKiselev, Khuzyasheva, et al., 1979liquid phase; solvent: Benzene; ALS

Aniline + Benzoyl chloride = Hydrogen chloride + Benzamide, N-phenyl-

By formula: C6H7N + C7H5ClO = HCl + C13H11NO

Quantity Value Units Method Reference Comment
Δr-35.6 ± 0.2kcal/molCacKiselev, Khuzyasheva, et al., 1979liquid phase; solvent: Benzene; ALS

Acetamide, N-phenyl- + Water = Aniline + Acetic acid

By formula: C8H9NO + H2O = C6H7N + C2H4O2

Quantity Value Units Method Reference Comment
Δr-10.05 ± 0.06kcal/molCmWadso, 1965solid phase; Heat of hydrolysis; ALS

Benzene, 1-isocyanato-4-nitro- + Aniline = N-(4-Nitrophenyl)-N'-phenyl-urea

By formula: C7H4N2O3 + C6H7N = C13H11N3O3

Quantity Value Units Method Reference Comment
Δr-20.0 ± 0.07kcal/molCmKiselev, Malkov, et al., 1989liquid phase; solvent: Dioxane; #TDE; ALS

Cyclohexane, isocyanato- + Aniline = Urea, N-cyclohexyl-N'-phenyl-

By formula: C7H11NO + C6H7N = C13H18N2O

Quantity Value Units Method Reference Comment
Δr-23.5 ± 0.26kcal/molCmKiselev, Malkov, et al., 1989liquid phase; solvent: Dioxane; ALS

2-Propanol, 1-phenoxy-3-(phenylamino)- = Oxirane, (phenoxymethyl)- + Aniline

By formula: C15H17NO2 = C9H10O2 + C6H7N

Quantity Value Units Method Reference Comment
Δr27.1 ± 0.5kcal/molCmKuznetsova, Rakova, et al., 1975solid phase; solvent: DMF; ALS

Benzene, isocyanato- + Aniline = Urea, N,N-diphenyl-

By formula: C7H5NO + C6H7N = C13H12N2O

Quantity Value Units Method Reference Comment
Δr-19.7 ± 0.48kcal/molCmKiselev, Malkov, et al., 1989liquid phase; solvent: Dioxane; ALS

Urea, N,N'-diphenyl- = Benzene, isocyanato- + Aniline

By formula: C13H12N2O = C7H5NO + C6H7N

Quantity Value Units Method Reference Comment
Δr43.4 ± 1.0kcal/molEqkChimishkyan, Svetlova, et al., 1984solid phase; Dissociation; ALS

Iodide + Aniline = (Iodide • Aniline)

By formula: I- + C6H7N = (I- • C6H7N)

Quantity Value Units Method Reference Comment
Δr12.9 ± 1.0kcal/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M

1-[1,2,4]Triazol-1-ylethanone + Aniline = Acetamide, N-phenyl- + 1H-1,2,4-Triazole

By formula: C4H5N3O + C6H7N = C8H9NO + C2H3N3

Quantity Value Units Method Reference Comment
Δr-17.28 ± 0.08kcal/molCmWadso, 1962solid phase; ALS

1-Acetyl-1H-tetrazole + Aniline = Acetamide, N-phenyl- + 1H-Tetrazole

By formula: C3H4N4O + C6H7N = C8H9NO + CH2N4

Quantity Value Units Method Reference Comment
Δr-20.22 ± 0.08kcal/molCmWadso, 1962solid phase; ALS

Acetic anhydride + Aniline = Acetamide, N-phenyl- + Acetic acid

By formula: C4H6O3 + C6H7N = C8H9NO + C2H4O2

Quantity Value Units Method Reference Comment
Δr-24.11 ± 0.06kcal/molCmWadso, 1962liquid phase; ALS

Benzene, isocyanato- + Aniline = Urea, N,N'-diphenyl-

By formula: C7H5NO + C6H7N = C13H12N2O

Quantity Value Units Method Reference Comment
Δr-21.3 ± 1.2kcal/molCmPannone and Macosko, 1987liquid phase; ALS

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1998.
NIST MS number 290555

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes

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

Hatton, Hildenbrand, et al., 1962
Hatton, W.E.; Hildenbrand, D.L.; Sinke, G.C.; Stull, D.R., Chemical thermodynamic properties of aniline, J. Chem. Eng. Data, 1962, 7, 229-231. [all data]

Vriens and Hill, 1952
Vriens, G.N.; Hill, A.G., Equilibria of several reactions of aromatic amines, Ind. Eng. Chem., 1952, 44, 2732-27. [all data]

Cole and Gilbert, 1951
Cole, L.G.; Gilbert, E.C., The heats of combustion of some nitrogen compounds and the apparent energy of the N-N bond, J. Am. Chem. Soc., 1951, 73, 5423-5427. [all data]

Anderson and Gilbert, 1942
Anderson, C.M.; Gilbert, E.C., The apparent energy of the N-N bond as calculated from heats of combustion, J. Am. Chem. Soc., 1942, 64, 2369-2372. [all data]

Lemoult, 1907
Lemoult, M.P., Recherches theoriques et experimentales sur les chaleurs de combustion et de formation des composes organiques, Ann. Chim. Phys., 1907, 12, 395-432. [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]

Wren, Vogelhuber, et al., 2012
Wren, S.W.; Vogelhuber, K.M.; Ichino, T.; Stanton, J.F.; Lineberger, W.C., Photoelectron Spectroscopy of Anilinide and Acidity of Aniline, J. Phys. Chem. A, 2012, 116, 12, 3118-3123, https://doi.org/10.1021/jp211463r . [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S., Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems, J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026 . [all data]

Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B., Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J. Am. Chem. Soc., 1983, 105, 2944. [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Kalnin'sh, 1988
Kalnin'sh, K.K., Autocatalysis and effects of the solvent in the reaction of phthalic anhydride with aniline derivatives, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1988, 1768-1773. [all data]

Pravednikov, Kardash, et al., 1973
Pravednikov, A.N.; Kardash, I.Ye.; Glukhoyedov, N.P.; Ardashnikov, A.Ya., Some features of the synthesis of heat-resistant heterocyclic polymers, Polym. Sci. USSR, 1973, 15, 399-410. [all data]

Matvienko, Kachurin, et al., 1982
Matvienko, N.M.; Kachurin, O.I.; Chekhuta, V.G., Kinetics and equilibrium of the transalkylation reaction of N-methylarylamines, Russ. Chem. Rev., 1982, 48, 42-45. [all data]

Kachurin, Matvienko, et al., 1979
Kachurin, O.I.; Matvienko, N.M.; Chekhuta, V.G., Disproportionation of N-methylaniline, Russ. Chem. Rev., 1979, 45, 43-47. [all data]

Davidson and Kebarle, 1976
Davidson, W.R.; Kebarle, P., Binding Energies and Stabilities of Potassium Ion Complexes from Studies of Gas Phase Ion Equilibria K+ + M = K+.M, J. Am. Chem. Soc., 1976, 98, 20, 6133, https://doi.org/10.1021/ja00436a011 . [all data]

Kiselev, Khuzyasheva, et al., 1979
Kiselev, V.D.; Khuzyasheva, d.G.; Konovalov, A.I., Thermochemical study of the acylation of para-substituted anilines, J. Gen. Chem. USSR, 1979, 49, 2273-2276. [all data]

Wadso, 1965
Wadso, I., Thermochemical properties of diacetimide, N-butyldiacetimide and N-phenyldiacetimide, Acta Chem. Scand., 1965, 19, 1079-1087. [all data]

Kiselev, Malkov, et al., 1989
Kiselev, V.D.; Malkov, V.B.; Murzin, D.G.; Shakirov, I.M.; Konovalov, A.I., Thermochemical study of the reaction of isocyanate with amines, Dokl. Phys. Chem. (Engl. Transl.), 1989, 308, 711-713, In original 111. [all data]

Kuznetsova, Rakova, et al., 1975
Kuznetsova, V.P.; Rakova, G.V.; Miroshnichenko, E.A.; Lebedev, Yu.A.; Enikolopyan, N.S., Thermochemical study of the interaction of epoxy compounds with primary amines, Dokl. Phys. Chem. (Engl. Transl.), 1975, 225, 1231-1234. [all data]

Chimishkyan, Svetlova, et al., 1984
Chimishkyan, A.L.; Svetlova, L.P.; Leonova, T.V.; Gluyaev, N.D., Thermal decomposition of substituted ureas, J. Gen. Chem. USSR, 1984, 54, 1317-1320. [all data]

Caldwell, Masucci, et al., 1989
Caldwell, G.W.; Masucci, J.A.; Ikonomou, M.G., Negative Ion Chemical Ionization Mass Spectrometry - Binding of Molecules to Bromide and Iodide Anions, Org. Mass Spectrom., 1989, 24, 1, 8, https://doi.org/10.1002/oms.1210240103 . [all data]

Wadso, 1962
Wadso, I., Heats of aminolysis and hydrolysis of some N-acetyl compounds and of acetic anhydride, Acta Chem. Scand., 1962, 16, 471-478. [all data]

Pannone and Macosko, 1987
Pannone, M.C.; Macosko, C.W., Kinetics of isocyanate amine reactions, J. Appl. Polym. Sci., 1987, 34, 2409-2432. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Mass spectrum (electron ionization), References