Benzonitrile

• Formula: C₇H₅N
• Molecular weight: 103.1213
• IUPAC Standard InChI: InChI=1S/C7H5N/c8-6-7-4-2-1-3-5-7/h1-5H Copy

  
• IUPAC Standard InChIKey: JFDZBHWFFUWGJE-UHFFFAOYSA-N Copy
• CAS Registry Number: 100-47-0
• 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, cyano-; Benzoic acid nitrile; Cyanobenzene; Phenyl cyanide; Benzenenitrile; Fenylkyanid; UN 2224
• 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
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • UV/Visible spectrum
  • Gas Chromatography
• 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Enthalpy of fusion

Entropy of fusion

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

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^- + C₇H₅N = (Br^- • C₇H₅N)

Free energy of reaction

 +  = ( • )

By formula: Cl^- + C₇H₅N = (Cl^- • C₇H₅N)

Free energy of reaction

C₇H₄N^- +  =

By formula: C₇H₄N^- + H⁺ = C₇H₅N

C₆H₇N⁺ +  = (C₆H₇N⁺ • )

By formula: C₆H₇N⁺ + C₇H₅N = (C₆H₇N⁺ • C₇H₅N)

Free energy of reaction

C₁₁H₁₀⁺ +  = (C₁₁H₁₀⁺ • )

By formula: C₁₁H₁₀⁺ + C₇H₅N = (C₁₁H₁₀⁺ • C₇H₅N)

Free energy of reaction

 +  = ( • )

By formula: NO^- + C₇H₅N = (NO^- • C₇H₅N)

CH₆N⁺ +  = (CH₆N⁺ • )

By formula: CH₆N⁺ + C₇H₅N = (CH₆N⁺ • C₇H₅N)

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

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:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
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 C₇H₅N⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₇H₄N^- +  =

By formula: C₇H₄N^- + H⁺ = C₇H₅N

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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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^- + C₇H₅N = (Br^- • C₇H₅N)

Free energy of reaction

CH₆N⁺ +  = (CH₆N⁺ • )

By formula: CH₆N⁺ + C₇H₅N = (CH₆N⁺ • C₇H₅N)

C₆H₇N⁺ +  = (C₆H₇N⁺ • )

By formula: C₆H₇N⁺ + C₇H₅N = (C₆H₇N⁺ • C₇H₅N)

Free energy of reaction

C₁₁H₁₀⁺ +  = (C₁₁H₁₀⁺ • )

By formula: C₁₁H₁₀⁺ + C₇H₅N = (C₁₁H₁₀⁺ • C₇H₅N)

Free energy of reaction

 +  = ( • )

By formula: Cl^- + C₇H₅N = (Cl^- • C₇H₅N)

Free energy of reaction

 +  = ( • )

By formula: NO^- + C₇H₅N = (NO^- • C₇H₅N)

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• LIQUID; PERKIN-ELMER; DIGITIZED BY NIST FROM HARD COPY; 4 cm^-1 resolution
• SOLUTION (10% IN CCl4 FOR 3800-1300, 10% IN CS2 FOR 1300-650, 10% IN CCl4 FOR 650-240 CM^-1) VERSUS SOLVENT; DOW KBr FOREPRISM-GRATING; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm^-1 resolution
• SOLUTION (10.14% IN CCl4 FOR 3800-1300, 10.05% IN CS2 FOR 1300-600, AND 10.14% IN CS2 FOR 600-250 CM^-1) VERSUS SOLVENT; PERKIN-ELMER 521 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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.

Lebedev, Bykova, et al., 1985
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Chernomordik, Yu.A.; Kurapov, A.S.; Sergeev, V.A., Thermodynamic study of benzonitrile, the process of its cocyclotrimerization with phenylacetylene, and the 2,4,6-triphenylpyridine that is formed, in the interval 0-330°K, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1985, 274-279. [all data]

Evans and Skinner, 1959
Evans, F.W.; Skinner, H.A., The heats of combustion of organic compounds of nitrogen Part 2.-n-Propyl, isopropyl and phenyl cyandies, Trans. Faraday Soc., 1959, 55, 255-259. [all data]

Lebedev, Bykova, et al., 1984
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V., Thermodynamics of benzonitrile, of its cyclotrimerization process, and of the triphenyl-s-triazine formed in the range 0-300°K, J. Gen. Chem. USSR, 1984, 54, 1209-1214. [all data]

Lebedev, Bykova, et al., 1985, 2
Lebedev, B.V.; Bykova, T.A.; Kiparisova, Y.G.; Chernomordik, Yu.A.; Kurapov, A.S.; Sergeev, V.A., Thermodynamic study of benzonitrile, the process of its cocyclotrimerization with phenylacetylene, and the resulting 2,4,6-triphenylpyridine at 0-300 K, Izv. Akad. Nauk SSSR, Ser. Khim., 1985, (2), 301-306. [all data]

Lebedev, Bykova, et al., 1984, 2
Lebedev, B.V.; Bykova, T.A.; Kiparisova, Y.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V., Thermodynamics of benzonitrile, of its cyclotrimerization process, and of the triphenyl-s-triazine formed in the range 0-330°K, Zhur. Obsch. Khim., 1984, 54, 1352-1358. [all data]

Bykova, Lebedev, et al., 1983
Bykova, T.A.; Lebedev, B.V.; Tarasov, E.N., Thermodynamics of benzonitrile in the range, 1983, Termodin. [all data]

Mirzaliev, Shakhuradov, et al., 1987
Mirzaliev, A.A.; Shakhuradov, Sh.G.; Guseinov, S.O., Investigation of the isobaric heat capacity of nitriles at different temperatures, Izv. Vyssh. Ucheb. Zaved., Neft i Gaz, 1987, 30(4), 55-58. [all data]

Lainez, Rodrigo, et al., 1985
Lainez, A.; Rodrigo, M.; Roux, A.H.; Grolier, J.-P.E.; Wilhelm, E., Relations between structure and thermodynamic properties. Heat capacities of polar substances (nitrobenzene and benzonitrile) in alkane solutions, Calorim. Anal. Therm., 1985, 16, 153-158. [all data]

Tanaka, Nakamichi, et al., 1985
Tanaka, R.; Nakamichi, T.; Murakami, S., Molar excess heat capacities and volumes for mixtures of benzomitrile with cyclohexane between 10 and 45°C, J. Solution Chem., 1985, 14(11), 795-803. [all data]

Lebedev, Bykova, et al., 1984, 3
Lebedev, B.V.; Bykova, T.A.; Kiparisova, E.G.; Pankratov, V.A.; Mitina, L.M.; Korshak, V.V., Thermodynamics of Benzonitrile, Its Cyclotrimerization and the Resulting Triphenyltriazine in the 0-330 K Range, Zh. Obshch. Khim., 1984, 54, 1352. [all data]

Bykova, Lebedev, et al., 1983, 2
Bykova, T.A.; Lebedev, B.V.; Tarasov, E.N., Thermodynamics of benzonitrile in the range 0-330 K, Termodin. Org. Soedin., 1983, 48-52. [all data]

Steele, Chirico, et al., 1994
Steele, W.V.; Chirico, R.D.; Hossenlopp, I.A.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K., DIPPR project 871. Determination of ideal-gas enthalpies of formation for key compounds. The 1990 project results, Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Ser. No. 2, p. 188-215. [all data]

Guye and Mallet, 1902
Guye, P.A.; Mallet, E., Critical Constant and Molecular Complexity of Several Organic Compds., C. R. Hebd. Seances Acad. Sci., 1902, 133, 168. [all data]

Guye and Mallet, 1902, 2
Guye, P.A.; Mallet, E., Measurement of Critical Constants, Arch. Sci. Phys. Nat., 1902, 13, 274-296. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [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]

Meot-ner and Kafafi, 1988
Meot-ner, M.; Kafafi, S.A., Carbon Acidities of Aromatic Compounds, J. Am. Chem. Soc., 1988, 110, 19, 6297, https://doi.org/10.1021/ja00227a003 . [all data]

Kiefer, Zhang, et al., 1997
Kiefer, J.H.; Zhang, Q.; Kern, R.D.; Yao, J.; Jursic, B., Pyrolysis of Aromatic Azines: Pyrazine, Pyrimidine, and Pyridine, J. Phys. Chem. A, 1997, 101, 38, 7061, https://doi.org/10.1021/jp970211z . [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]

El-Shall and Meot-Ner (Mautner), 1987
El-Shall, M.S.; Meot-Ner (Mautner), M., Ionic Charge Transfer Complexes. 3. Delocalised pi Systems as Electron Acceptors and Donors, J. Phys. Chem., 1987, 91, 5, 1088, https://doi.org/10.1021/j100289a017 . [all data]

Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S., Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes, J. Am. Chem. Soc., 1981, 103, 2791. [all data]

Farid and McMahon, 1978
Farid, R.; McMahon, T.B., Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy, Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0 . [all data]

Speller and Meot-Ner (Mautner), 1985
Speller, C.V.; Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites, J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020 . [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]

Zlatkis, Lee, et al., 1983
Zlatkis, A.; Lee, C.K.; Wentworth, W.E.; Chen, E.C.M., Constant current linearization for determination of electron capture mechanisms, Anal. Chem., 1983, 55, 1596. [all data]

Wentworth, Kao, et al., 1975
Wentworth, W.E.; Kao, L.W.; Becker, R.S., Electron affinities of substituted aromatic compounds, J. Phys. Chem., 1975, 79, 1161. [all data]

Araki and Sato, 1996
Araki, M.; Sato, S.-i., Two-color zero kinetic energy photoelectron spectra of benzonitrile and its van der Waals complexes with argon. Adiabatic ionization potentials and cation vibrational frequencies, J. Phys. Chem., 1996, 100, 10542. [all data]

Klasinc, Kovac, et al., 1983
Klasinc, L.; Kovac, B.; Gusten, H., Photoelectron spectra of acenes. Electronic structure and substituent effects, Pure Appl. Chem., 1983, 55, 289. [all data]

Baldwin, 1979
Baldwin, M.A., Appearance energies and the kinetic shift. Loss of HCN from the benzonitrile molecular ion, Org. Mass Spectrom., 1979, 14, 601. [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]

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]

McLafferty, Bente, et al., 1973
McLafferty, F.W.; Bente, P.F., III; Kornfeld, R.; Tsai, S.-C.; Howe, I., Collisional activation spectra of organic ions, J. Am. Chem. Soc., 1973, 95, 2120. [all data]

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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]

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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]

Palmer, Moyes, et al., 1980
Palmer, M.H.; Moyes, W.; Spiers, M., The electronic structure of substituted benzenes: Ab initio calculations and photoelectron spectra for benzonitrile, the tolunitriles, fluorobenzonitriles, dicyanobenzenes and ethynylbenzene, J. Mol. Struct., 1980, 62, 165. [all data]

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Neijzen, B.J.M.; DeLange, C.A., Photoelectron spectroscopy of mono-dicyanobenzenes their perfluoro derivatives, J. Electron Spectrosc. Relat. Phenom., 1978, 14, 187. [all data]

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Kobayashi, T.; Nagakura, S., Photoelectron spectra of substituted benzenes, Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]

Griebel, Hohlneicher, et al., 1974
Griebel, R.; Hohlneicher, G.; Dorr, F., A photoelectron spectroscopic study of benzonitrile, ethynylbenzene and some of its substituted derivatives, J. Electron Spectrosc. Relat. Phenom., 1974, 4, 185. [all data]

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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]

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Burgers, P.C.; Holmes, J.L., Metastable ion studies. XIII. The measurement of appearance energies of metastable peaks, Org. Mass Spectrom., 1982, 17, 123. [all data]

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Maccoll, A.; Mathur, D., On the heat of formation of [C₆H₄], Org. Mass Spectrom., 1981, 16, 261. [all data]

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Rosenstock, H.M.; Stockbauer, R.; Parr, A.C., Photoelectron-photoion coincidence study of benzonitrile, J. Chim. Phys., 1980, 77, 745. [all data]

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Bentley, T.W.; Johnstone, R.A.W.; McMaster, B.N., Appearance potentials of metastable and normal ions and the kinetic shift, J. Chem. Soc., Chem. Commun., 1973, 510. [all data]

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Gross, M.L., Ion cyclotron resonance spectrometry. A means of evaluating 'kinetic shifts', Org. Mass Spectrom., 1972, 6, 827. [all data]

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Howe, I.; Williams, D.H., Calculation and qualitative predictions of mass spectra. Mono- and paradisubstituted benzenes, J. Am. Chem. Soc., 1969, 91, 7137. [all data]

Burgers and Holmes, 1984
Burgers, P.C.; Holmes, J.L., Fragmentation rate constants and appearance energies for reactions having a large kinetic shift and the energy partitioning in their metastable decomposition, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 15. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,liquid	Constant pressure heat capacity of liquid
  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  T	Temperature
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ρc	Critical density

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