Benzene

• Formula: C₆H₆
• Molecular weight: 78.1118
• IUPAC Standard InChI: InChI=1S/C6H6/c1-2-4-6-5-3-1/h1-6H Copy

  
• IUPAC Standard InChIKey: UHOVQNZJYSORNB-UHFFFAOYSA-N Copy
• CAS Registry Number: 71-43-2
• 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.
• Isotopologues:
  • Benzene-D6
• Other names: [6]Annulene; Benzol; Benzole; Coal naphtha; Cyclohexatriene; Phenyl hydride; Pyrobenzol; Pyrobenzole; Benzolene; Bicarburet of hydrogen; Carbon oil; Mineral naphtha; Motor benzol; Benzeen; Benzen; Benzin; Benzine; Benzolo; Fenzen; NCI-C55276; Phene; Rcra waste number U019; UN 1114; NSC 67315; 1,3,5-Cyclohexatriene
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data (reactions 51 to 99)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data: reactions 1 to 50
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Vibrational and/or electronic energy levels
  • Gas Chromatography
  • Fluid Properties
• Data at other public NIST sites:
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • NIST Polycyclic Aromatic Hydrocarbon Structure Index
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Reaction thermochemistry data

Go To: Top, 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:
RCD - Robert C. Dunbar
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - 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.

Reactions 51 to 99

 +  = ( • )

By formula: Co⁺ + C₆H₆ = (Co⁺ • C₆H₆)

Enthalpy of reaction

 +  = ( • )

By formula: Cu⁺ + C₆H₆ = (Cu⁺ • C₆H₆)

Enthalpy of reaction

3 +  =

By formula: 3H₂ + C₆H₆ = C₆H₁₂

( • 2) +  = ( • 3)

By formula: (H₄N⁺ • 2C₆H₆) + C₆H₆ = (H₄N⁺ • 3C₆H₆)

( • ) +  = ( • 2)

By formula: (H₄N⁺ • C₆H₆) + C₆H₆ = (H₄N⁺ • 2C₆H₆)

( • 2) +  = ( • 3)

By formula: (K⁺ • 2C₆H₆) + C₆H₆ = (K⁺ • 3C₆H₆)

( • 3) +  = ( • 4)

By formula: (K⁺ • 3C₆H₆) + C₆H₆ = (K⁺ • 4C₆H₆)

 +  = ( • )

By formula: Pb⁺ + C₆H₆ = (Pb⁺ • C₆H₆)

 +  = ( • )

By formula: H₄N⁺ + C₆H₆ = (H₄N⁺ • C₆H₆)

C₃H₁₀N⁺ +  = (C₃H₁₀N⁺ • )

By formula: C₃H₁₀N⁺ + C₆H₆ = (C₃H₁₀N⁺ • C₆H₆)

C₆H₇⁺ +  = (C₆H₇⁺ • )

By formula: C₆H₇⁺ + C₆H₆ = (C₆H₇⁺ • C₆H₆)

CH₆N⁺ +  = (CH₆N⁺ • )

By formula: CH₆N⁺ + C₆H₆ = (CH₆N⁺ • C₆H₆)

C₃H₉Si⁺ +  = (C₃H₉Si⁺ • )

By formula: C₃H₉Si⁺ + C₆H₆ = (C₃H₉Si⁺ • C₆H₆)

C₄H₄S⁺ +  = (C₄H₄S⁺ • )

By formula: C₄H₄S⁺ + C₆H₆ = (C₄H₄S⁺ • C₆H₆)

(C₆H₆⁺ • 10) +  = (C₆H₆⁺ • 11)

By formula: (C₆H₆⁺ • 10C₆H₆) + C₆H₆ = (C₆H₆⁺ • 11C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 11) +  = (C₆H₆⁺ • 12)

By formula: (C₆H₆⁺ • 11C₆H₆) + C₆H₆ = (C₆H₆⁺ • 12C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 12) +  = (C₆H₆⁺ • 13)

By formula: (C₆H₆⁺ • 12C₆H₆) + C₆H₆ = (C₆H₆⁺ • 13C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 13) +  = (C₆H₆⁺ • 14)

By formula: (C₆H₆⁺ • 13C₆H₆) + C₆H₆ = (C₆H₆⁺ • 14C₆H₆)

Bond type: Charge transfer bond (positive ion)

 +  = C₆H₆O₂^-

By formula: O₂^- + C₆H₆ = C₆H₆O₂^-

(C₆H₆⁺ • 9) +  = (C₆H₆⁺ • 10)

By formula: (C₆H₆⁺ • 9C₆H₆) + C₆H₆ = (C₆H₆⁺ • 10C₆H₆)

Bond type: Charge transfer bond (positive ion)

 +  = C₆H₆NO^-

By formula: NO^- + C₆H₆ = C₆H₆NO^-

(C₆H₆⁺ • 5) +  = (C₆H₆⁺ • 6)

By formula: (C₆H₆⁺ • 5C₆H₆) + C₆H₆ = (C₆H₆⁺ • 6C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 6) +  = (C₆H₆⁺ • 7)

By formula: (C₆H₆⁺ • 6C₆H₆) + C₆H₆ = (C₆H₆⁺ • 7C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 7) +  = (C₆H₆⁺ • 8)

By formula: (C₆H₆⁺ • 7C₆H₆) + C₆H₆ = (C₆H₆⁺ • 8C₆H₆)

Bond type: Charge transfer bond (positive ion)

(C₆H₆⁺ • 8) +  = (C₆H₆⁺ • 9)

By formula: (C₆H₆⁺ • 8C₆H₆) + C₆H₆ = (C₆H₆⁺ • 9C₆H₆)

Bond type: Charge transfer bond (positive ion)

( • ) +  = ( • 2)

By formula: (V⁺ • C₆H₆) + C₆H₆ = (V⁺ • 2C₆H₆)

C₆H₆NO^- + 2 = C₁₂H₁₂NO^-

By formula: C₆H₆NO^- + 2C₆H₆ = C₁₂H₁₂NO^-

 +  = ( • )

By formula: Ag⁺ + C₆H₆ = (Ag⁺ • C₆H₆)

 +  = ( • )

By formula: Mg⁺ + C₆H₆ = (Mg⁺ • C₆H₆)

 +  = C₈H₉Br + 

By formula: C₈H₁₀ + C₆H₅Br = C₈H₉Br + C₆H₆

(V^- • ) +  = (V^- •  • )

By formula: (V^- • C₆H₅F) + C₆H₆ = (V^- • C₆H₆ • C₆H₅F)

 +  =  + 

By formula: C₉H₁₁Cl + C₆H₆ = C₆H₅Cl + C₉H₁₂

 +  = 2

By formula: C₁₄H₂₂ + C₆H₆ = 2C₁₀H₁₄

 +  =  + 

By formula: HI + C₆H₅I = C₆H₆ + I₂

( • ) +  = ( • 2)

By formula: (Li⁺ • C₆H₆) + C₆H₆ = (Li⁺ • 2C₆H₆)

( • ) +  = ( • 2)

By formula: (Cs⁺ • C₆H₆) + C₆H₆ = (Cs⁺ • 2C₆H₆)

( • ) +  = ( • 2)

By formula: (Rb⁺ • C₆H₆) + C₆H₆ = (Rb⁺ • 2C₆H₆)

 +  =  + 

By formula: C₁₀H₁₄ + C₆H₆ = C₇H₈ + C₉H₁₂

( • ) +  = ( • 2)

By formula: (Ag⁺ • C₆H₆) + C₆H₆ = (Ag⁺ • 2C₆H₆)

2 =  + 

By formula: 2C₉H₁₂ = C₁₂H₁₈ + C₆H₆

 +  =  + 

By formula: C₆H₆ + Cl₂ = C₆H₅Cl + HCl

2 =  + 

By formula: 2C₉H₁₂ = C₆H₆ + C₁₂H₁₈

=

By formula: C₆H₆ = C₆H₆

 +  = ( • )

By formula: Cs⁺ + C₆H₆ = (Cs⁺ • C₆H₆)

 +  = ( • )

By formula: Rb⁺ + C₆H₆ = (Rb⁺ • C₆H₆)

 +  = ( • )

By formula: Al⁺ + C₆H₆ = (Al⁺ • C₆H₆)

 +  = ( • )

By formula: Cd⁺ + C₆H₆ = (Cd⁺ • C₆H₆)

 +  = ( • )

By formula: Bi⁺ + C₆H₆ = (Bi⁺ • C₆H₆)

 +  = ( • )

By formula: Au⁺ + C₆H₆ = (Au⁺ • C₆H₆)

References

Go To: Top, Reaction thermochemistry data, Notes

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

Meyer, Khan, et al., 1995
Meyer, F.; Khan, F.A.; Armentrout, P.B., Thermochemistry of Transition Metal Benzene complexes: Binding energies of M(C6H6)x+ (x = 1,2) for M = Ti to Cu, J. Am. Chem. Soc., 1995, 117, 38, 9740, https://doi.org/10.1021/ja00143a018 . [all data]

Kistiakowsky, Ruhoff, et al., 1936
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E., Heats of organic reactions. IV. Hydrogenation of some dienes and of benzene, J. Am. Chem. Soc., 1936, 58, 146-153. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Liebman, Romm, et al., 1991
Liebman, J.F.; Romm, M.J.; Meot-Ner (Mautner), M.; Cybulski, S.M.; Scheiner, S., Isotropy in ionic interactions. 2. How spherical is the ammonium ion? Comparison of the gas-phase clustering energies and condensed-phase thermochemistry of K+ and NH4+, J. Phys. Chem., 1991, 95, 3, 1112, https://doi.org/10.1021/j100156a018 . [all data]

Sunner, Nishizawa, et al., 1981
Sunner, J.; Nishizawa, K.; Kebarle, P., Ion - Solvent Molecule Interactions in the Gas Phase. Potassium Ion and Benzene, J. Phys. Chem., 1981, 85, 13, 1814, https://doi.org/10.1021/j150613a011 . [all data]

Guo, Purnell, et al., 1990
Guo, B.C.; Purnell, J.W.; Castleman, A.W., The Clustering Reactions of Benzene with Sodium and Lead Ions, Chem. Phys. Lett., 1990, 168, 2, 155, https://doi.org/10.1016/0009-2614(90)85122-S . [all data]

Deakyne and Meot-Ner (Mautner), 1985
Deakyne, C.A.; Meot-Ner (Mautner), M., Unconventional Ionic Hydrogen Bonds. 2. NH+ pi. Complexes of Onium Ions with Olefins and Benzene Derivatives, J. Am. Chem. Soc., 1985, 107, 2, 474, https://doi.org/10.1021/ja00288a034 . [all data]

Meot-Ner (Mautner), Hamlet, et al., 1978
Meot-Ner (Mautner), M.; Hamlet, P.; Hunter, E.P.; Field, F.H., Bonding Energies in Association Ions of Aromatic Molecules. Correlations with Ionization Energies, J. Am. Chem. Soc., 1978, 100, 17, 5466, https://doi.org/10.1021/ja00485a034 . [all data]

Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J., A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases, Can. J. Chem., 1986, 74, 59. [all data]

Field, Hamlet, et al., 1969
Field, F.H.; Hamlet, P.; Libby, W.F., Effect of Temperature on the Mass Spectrum of Benzene at High Pressures, J. Am. Chem. Soc., 1969, 91, 11, 2839, https://doi.org/10.1021/ja01039a003 . [all data]

Beck and Hecht, 1991
Beck, S.M.; Hecht, J.H., Photofragmentation of Mass - Selected (C6H6)n+ Clusters: Measurement of Monomer - Cluster Binding Energy for n = 7 - 15, J. Chem. Phys., 1991, 96, 3, 1975, https://doi.org/10.1063/1.462099 . [all data]

Le Barbu, Schiedt, et al., 2002
Le Barbu, K.; Schiedt, J.; Weinkauf, R.; Schlag, E.W.; Nilles, J.M.; Xu, S.J.; Thomas, O.C.; Bowen, K.H., Microsolvation of small anions by aromatic molecules: An exploratory study, J. Chem. Phys., 2002, 116, 22, 9663-9671, https://doi.org/10.1063/1.1475750 . [all data]

Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B., Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation, Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X . [all data]

Ho, Yang, et al., 1997
Ho, Y.-P.; Yang, Y.-C.; Klippenstein, S.J.; Dunbar, R.C., Binding Energies of Ag+ and Cd+ Complexes from Analysis of Radiative Association Kinetics, J. Phys. Chem. A, 1997, 101, 18, 3338, https://doi.org/10.1021/jp9637284 . [all data]

Andersen, Muntean, et al., 2000
Andersen, A.; Muntean, F.; Walter, D.; Rue, C.; Armentrout, P.B., Collision-Induced Dissociation and Theoretical Studies of Mg+ Complexes with CO, CO2, NH3, CH4, CH3OH, and C6H6, J. Phys. Chem. A, 2000, 104, 4, 692, https://doi.org/10.1021/jp993031t . [all data]

Gapeev and Dunbar, 2000
Gapeev, A.; Dunbar, R.C., Binding of Alkaline Earth Halide Ions MX+ to Benzene and Mesitylene, J. Am. Soc. Mass Spectrom., 2000, 13, 5, 477, https://doi.org/10.1016/S1044-0305(02)00373-2 . [all data]

Merdzhanov, Alenin, et al., 1982
Merdzhanov, V.R.; Alenin, V.I.; Nesterova, T.N.; Rozhnov, A.M., Study of equilibrium transformation of ethylbromobenzenes, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1982, 25, 1047-1049. [all data]

Judai, Hirano, et al., 1997
Judai, K.; Hirano, M.; Kawamata, H.; Yabushita, S.; Nakajima, A.; Kaya, K., Formation of Vanadium-Arene Complex Anions and Their Photoelectron Spectroscopy, Chem. Phys. Lett., 1997, 270, 1-2, 23, https://doi.org/10.1016/S0009-2614(97)00336-9 . [all data]

Nesterova, Rozhnov, et al., 1985
Nesterova, T.N.; Rozhnov, A.M.; Malova, T.N.; Kovzel, E.N., Molar enthalpies of formation of isopropylchlorobenzenes derived from equilibrium measurements, J. Chem. Thermodyn., 1985, 17, 649-656. [all data]

Nesterova, Verevkin, et al., 1984
Nesterova, T.N.; Verevkin, S.R.; Karaseva, S.Ya.; Rozhnov, A.M.; Tsvetkov, V.F., The equilibria in the interconversions of t-butylbenzenes, Russ. J. Phys. Chem. (Engl. Transl.), 1984, 58, 297-298. [all data]

Graham, Nichol, et al., 1955
Graham, W.S.; Nichol, R.J.; Ubbelohde, A.R., A thermochemical evaluation of bond strengths in some carbon compounds. Part III. Bond strengths based on the reactions: (a) Ph·CH₂I + HI=Ph·CH₃ + I₂ and (b) PhI + HI=PhH + I₂, J. Chem. Soc., 1955, 115-121. [all data]

Amicangelo and Armentrout, 2000
Amicangelo, J.C.; Armentrout, P.B., Absolute Binding Energies of Alkali-Metal Cation Complexes with Benzene Determined by Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory, J. Phys. Chem. A, 2000, 104, 48, 11420, https://doi.org/10.1021/jp002652f . [all data]

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Popov, Rozhnov, et al., 1974
Popov, V.E.; Rozhnov, A.M.; Satronov, V.S.; Volkova, A.G., Disproportionation equilibrium for isopropylbenzene, Neftekhimiya, 1974, 14, 364-367. [all data]

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Turro, N.J.; Renner, C.A.; Katz, T.J.; Wiberg, K.B.; Connon, H.A., Kinetics and thermochemistry of the rearrangement of benzvalene to benzene. An energy sufficient but non-chemiluminescent reaction, Tetrahedron Lett., 1976, 4133-4136. [all data]

Dunbar, Klippenstein, et al., 1996
Dunbar, R.C.; Klippenstein, S.J.; Hrusak, J.; Stockigt, D.; Schwarz, H., Binding Energy of Al(C6H6)+ from the Analysis of Radiative Association Kinetics, J. Am. Chem. Soc., 1996, 118, 22, 5277, https://doi.org/10.1021/ja953235x . [all data]

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Willey, K.F.; Yeh, C.S.; Robbins, D.L.; Duncan, M.A., Charge-transfer in the photodissociation of metal ion-benzene complexes, J. Phys. Chem., 1992, 96, 23, 9106, https://doi.org/10.1021/j100202a007 . [all data]

Schroeder, Hrusak, et al., 1995
Schroeder, D.; Hrusak, J.; Hertwig, R.H.; Koch, W.; Schwerdtfeger, P.; Schwarz, H., Experimental and Theoretical Studies of Gold(I) Complexes Au(L)+ (L=H2O, CO, NH3, C2H4, C3H6, C4H6, C6H6, C6F6), Organometallics, 1995, 14, 1, 312, https://doi.org/10.1021/om00001a045 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

  T	Temperature
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

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