Benzene

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Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas19.8 ± 0.2kcal/molReviewRoux, Temprado, et al., 2008There are sufficient high-quality literature values to make a good evaluation with a high degree of confidence. In general, the evaluated uncertainty limits are on the order of (0.5 to 2.5) kJ/mol.; DRB
Δfgas19.8kcal/molN/AGood and Smith, 1969Value computed using ΔfHliquid° value of 49.0±0.5 kj/mol from Good and Smith, 1969 and ΔvapH° value of 33.9 kj/mol from Prosen, Gilmont, et al., 1945.; DRB
Δfgas19.82 ± 0.12kcal/molCcbProsen, Gilmont, et al., 1945Hf by Prosen, Johnson, et al., 1946; ALS
Δfgas19.1kcal/molN/ALandrieu, Baylocq, et al., 1929Value computed using ΔfHliquid° value of 46.0 kj/mol from Landrieu, Baylocq, et al., 1929 and ΔvapH° value of 33.9 kj/mol from Prosen, Gilmont, et al., 1945.; DRB

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
7.95250.Thermodynamics Research Center, 1997GT
8.391100.
10.02150.
12.71200.
17.82273.15
19.70298.15
19.84300.
27.132400.
33.305500.
38.262600.
42.251700.
45.519800.
48.236900.
50.5281000.
52.4761100.
54.1401200.
55.5661300.
56.8001400.
57.8661500.
59.9691750.
61.4872000.
62.6082250.
63.4562500.
64.1092750.
64.6203000.

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
22.30 ± 0.01333.15Todd S.S., 1978Please also see Montgomery J.B., 1942, Pitzer K.S., 1943, Scott D.W., 1947.; GT
22.90341.60
23.42 ± 0.01348.15
24.85 ± 0.01368.15
25.100370.
25.041371.20
26.00 ± 0.30388.
26.501390.
26.40 ± 0.30393.
27.230402.30
27.32 ± 0.02403.15
27.600410.
28.10 ± 0.30417.
28.40 ± 0.30428.
29.491436.15
29.62 ± 0.02438.15
30.30 ± 0.30463.
31.649471.10
31.77 ± 0.02473.15
31.40 ± 0.30481.
33.33 ± 0.02500.15
34.80 ± 0.02527.15

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, 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
RCD - Robert C. Dunbar

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 1 to 50

Chlorine anion + Benzene = (Chlorine anion • Benzene)

By formula: Cl- + C6H6 = (Cl- • C6H6)

Quantity Value Units Method Reference Comment
Δr6.00 ± 0.46kcal/molN/ATschurl, Ueberfluss, et al., 2007gas phase; B
Δr9.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Δr9.90kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr8.7kcal/molPHPMSPaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Δr10.4kcal/molPHPMSSunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr17.9cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Δr17.cal/mol*KN/APaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Δr17.1cal/mol*KN/ALarson and McMahon, 1984, 2gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δr22.cal/mol*KN/ASunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr4.0 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B
Δr3.8 ± 1.6kcal/molIMREChowdhury and Kebarle, 1986gas phase; B
Δr4.8 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr3.80kcal/molIMREFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.6300.PHPMSPaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
3.8300.PHPMSChowdhury and Kebarle, 1986gas phase; M
3.8300.PHPMSSunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M

C6H5- + Hydrogen cation = Benzene

By formula: C6H5- + H+ = C6H6

Quantity Value Units Method Reference Comment
Δr401.22 ± 0.50kcal/molG+TSDavico, Bierbaum, et al., 1995gas phase; Revised per Ervin and DeTuro, 2002 change in NH3 acidity. Alecu, Gao, et al., 2007 using thermal methods, agrees with this BDE: 112.8±0.6; value altered from reference due to change in acidity scale; B
Δr401.16 ± 0.21kcal/molD-EAGunion, Gilles, et al., 1992gas phase; B
Δr400.7 ± 2.5kcal/molTDEqMeot-ner and Sieck, 1986gas phase; B
Δr401. ± 10.kcal/molCIDTGraul and Squires, 1990gas phase; B
Δr398.0 ± 5.6kcal/molG+TSBohme and Young, 1971gas phase; B
Quantity Value Units Method Reference Comment
Δr392.40 ± 0.40kcal/molIMREDavico, Bierbaum, et al., 1995gas phase; Revised per Ervin and DeTuro, 2002 change in NH3 acidity. Alecu, Gao, et al., 2007 using thermal methods, agrees with this BDE: 112.8±0.6; value altered from reference due to change in acidity scale; B
Δr390.9 ± 2.0kcal/molTDEqMeot-ner and Sieck, 1986gas phase; B
Δr390.1 ± 6.5kcal/molIMRBBartmess and McIver Jr., 1979gas phase; B
Δr389.2 ± 5.5kcal/molIMRBBohme and Young, 1971gas phase; B

C6H6+ + Benzene = (C6H6+ • Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr14. ± 8.kcal/molAVGN/AAverage of 7 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Δr28.8cal/mol*KPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M
Δr27.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Δr23.cal/mol*KHPMSField, Hamlet, et al., 1969gas phase; M

Lithium ion (1+) + Benzene = (Lithium ion (1+) • Benzene)

By formula: Li+ + C6H6 = (Li+ • C6H6)

Quantity Value Units Method Reference Comment
Δr38.5 ± 3.2kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr37.9kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M
Δr36.5kcal/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
Δr27.5cal/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
Δr29.7kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M

Bromine anion + Benzene = (Bromine anion • Benzene)

By formula: Br- + C6H6 = (Br- • C6H6)

Quantity Value Units Method Reference Comment
Δr9.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr17.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Δr17.cal/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr2.5 ± 1.0kcal/molIMREPaul and Kebarle, 1991gas phase; B
Δr3.9 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.0423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

(Sodium ion (1+) • Benzene) + Benzene = (Sodium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr20. ± 1.kcal/molAVGN/AAverage of 7 values; Individual data points

Sodium ion (1+) + Benzene = (Sodium ion (1+) • Benzene)

By formula: Na+ + C6H6 = (Na+ • C6H6)

Quantity Value Units Method Reference Comment
Δr22.8 ± 1.4kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
Δr21.1 ± 1.2kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr21.1 ± 1.1kcal/molCIDTArmentrout and Rodgers, 2000RCD
Δr28.0kcal/molHPMSGuo, Purnell, et al., 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr31.2cal/mol*KHPMSGuo, Purnell, et al., 1990gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
15.7298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

C9H13N+ + Benzene = (C9H13N+ • Benzene)

By formula: C9H13N+ + C6H6 = (C9H13N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr11.2kcal/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

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.6331.PHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C7H9N+ + Benzene = (C7H9N+ • Benzene)

By formula: C7H9N+ + C6H6 = (C7H9N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr12.3kcal/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
Δr4.6kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C8H11N+ + Benzene = (C8H11N+ • Benzene)

By formula: C8H11N+ + C6H6 = (C8H11N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr10.0kcal/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
Δr2.2kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C10H10Fe+ + Benzene = (C10H10Fe+ • Benzene)

By formula: C10H10Fe+ + C6H6 = (C10H10Fe+ • C6H6)

Quantity Value Units Method Reference Comment
Δr8.kcal/molPHPMSMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.0252.PHPMSMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M

(Cobalt ion (1+) • Benzene) + Benzene = (Cobalt ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr39.9 ± 3.3kcal/molCIDTMeyer, Khan, et al., 1995RCD
Quantity Value Units Method Reference Comment
Δr27.8cal/mol*KSIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(490 K); M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
39.9 (+3.2,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M
27.0 (+1.0,-0.) SIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(490 K); M

C7H8+ + Benzene = (C7H8+ • Benzene)

By formula: C7H8+ + C6H6 = (C7H8+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr12.2kcal/molMPIErnstberger, Krause, et al., 1990gas phase; M
Δr5.5kcal/molPIRuhl, Bisling, et al., 1986gas phase; from vIP of perpendicular dimer; M
Δr12.4kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C2H7O+ + Benzene = (C2H7O+ • Benzene)

By formula: C2H7O+ + C6H6 = (C2H7O+ • C6H6)

Quantity Value Units Method Reference Comment
Δr21.kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr25.cal/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
8.7491.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

(Potassium ion (1+) • Benzene • Water) + Benzene = (Potassium ion (1+) • 2Benzene • Water)

By formula: (K+ • C6H6 • H2O) + C6H6 = (K+ • 2C6H6 • H2O)

Quantity Value Units Method Reference Comment
Δr14.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr30.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water • Benzene) + Water = (Potassium ion (1+) • 3Water • Benzene)

By formula: (K+ • 2H2O • C6H6) + H2O = (K+ • 3H2O • C6H6)

Quantity Value Units Method Reference Comment
Δr11.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr26.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water • Benzene) + Water = (Potassium ion (1+) • 2Water • Benzene)

By formula: (K+ • H2O • C6H6) + H2O = (K+ • 2H2O • C6H6)

Quantity Value Units Method Reference Comment
Δr12.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr21.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

Iodide + Benzene = (Iodide • Benzene)

By formula: I- + C6H6 = (I- • C6H6)

Quantity Value Units Method Reference Comment
Δr6.1 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Δr9.1 ± 1.0kcal/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr14.2cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr1.8 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B

C3H3+ + Benzene = (C3H3+ • Benzene)

By formula: C3H3+ + C6H6 = (C3H3+ • C6H6)

Quantity Value Units Method Reference Comment
Δr9.0kcal/molHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr9.cal/mol*KHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr6.kcal/molHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M

(Potassium ion (1+) • Water • 2Benzene) + Water = (Potassium ion (1+) • 2Water • 2Benzene)

By formula: (K+ • H2O • 2C6H6) + H2O = (K+ • 2H2O • 2C6H6)

Quantity Value Units Method Reference Comment
Δr12.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr29.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

(C6H6+ • 2Benzene) + Benzene = (C6H6+ • 3Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.0kcal/molPHPMSHiraoka, Fujimaki, et al., 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AHiraoka, Fujimaki, et al., 1991gas phase; Entropy change calculated or estimated; M

(Potassium ion (1+) • Benzene • 2Water) + Benzene = (Potassium ion (1+) • 2Benzene • 2Water)

By formula: (K+ • C6H6 • 2H2O) + C6H6 = (K+ • 2C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
Δr12.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr33.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

Chromium ion (1+) + Benzene = (Chromium ion (1+) • Benzene)

By formula: Cr+ + C6H6 = (Cr+ • C6H6)

Quantity Value Units Method Reference Comment
Δr40.2kcal/molMIDLin, Chen, et al., 1997RCD
Δr39.2 ± 3.3kcal/molRAKLin and Dunbar, 1997RCD
Δr40.6 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Potassium ion (1+) • 2Benzene) + Water = (Potassium ion (1+) • Water • 2Benzene)

By formula: (K+ • 2C6H6) + H2O = (K+ • H2O • 2C6H6)

Quantity Value Units Method Reference Comment
Δr13.7kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr26.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 2H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene) + Water = (Potassium ion (1+) • Water • Benzene)

By formula: (K+ • C6H6) + H2O = (K+ • H2O • C6H6)

Quantity Value Units Method Reference Comment
Δr18.1kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr29.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ C6H6)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water) + Benzene = (Potassium ion (1+) • Benzene • 2Water)

By formula: (K+ • 2H2O) + C6H6 = (K+ • C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
Δr13.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr24.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 3Water) + Benzene = (Potassium ion (1+) • Benzene • 3Water)

By formula: (K+ • 3H2O) + C6H6 = (K+ • C6H6 • 3H2O)

Quantity Value Units Method Reference Comment
Δr12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr27.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water) + Benzene = (Potassium ion (1+) • Benzene • Water)

By formula: (K+ • H2O) + C6H6 = (K+ • C6H6 • H2O)

Quantity Value Units Method Reference Comment
Δr16.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr27.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M

(Chromium ion (1+) • Benzene) + Benzene = (Chromium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD
Δr55.4 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.3 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Fluorine anion + Benzene = (Fluorine anion • Benzene)

By formula: F- + C6H6 = (F- • C6H6)

Quantity Value Units Method Reference Comment
Δr15.30kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr9.40kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

Manganese ion (1+) + Benzene = (Manganese ion (1+) • Benzene)

By formula: Mn+ + C6H6 = (Mn+ • C6H6)

Quantity Value Units Method Reference Comment
Δr34.4kcal/molMIDLin, Chen, et al., 1997RCD
Δr31.8 ± 2.2kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
31.8 (+2.1,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Vanadium ion (1+) + Benzene = (Vanadium ion (1+) • Benzene)

By formula: V+ + C6H6 = (V+ • C6H6)

Quantity Value Units Method Reference Comment
Δr>55.kcal/molRAKGapeev and Dunbar, 2002RCD
Δr55.9 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.8 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Iron ion (1+) + Benzene = (Iron ion (1+) • Benzene)

By formula: Fe+ + C6H6 = (Fe+ • C6H6)

Quantity Value Units Method Reference Comment
Δr47.1kcal/molRAKGapeev and Dunbar, 2002RCD
Δr49.5 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
49.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Titanium ion (1+) + Benzene = (Titanium ion (1+) • Benzene)

By formula: Ti+ + C6H6 = (Ti+ • C6H6)

Quantity Value Units Method Reference Comment
Δr50.9kcal/molRAKGapeev and Dunbar, 2002RCD
Δr61.9 ± 2.2kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
61.8 (+2.1,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Potassium ion (1+) • Benzene) + Benzene = (Potassium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr16.1 ± 1.7kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr18.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr33.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

C4H9+ + Benzene = (C4H9+ • Benzene)

By formula: C4H9+ + C6H6 = (C4H9+ • C6H6)

Quantity Value Units Method Reference Comment
Δr22.kcal/molPHPMSSen Sharma, Ikuta, et al., 1982gas phase; forms protonated t-butylbenzene; M
Quantity Value Units Method Reference Comment
Δr49.cal/mol*KPHPMSSen Sharma, Ikuta, et al., 1982gas phase; forms protonated t-butylbenzene; M

(C6H6+ • Benzene) + Benzene = (C6H6+ • 2Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.8 ± 0.5kcal/molPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M
Quantity Value Units Method Reference Comment
Δr19.8cal/mol*KPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M

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

By formula: K+ + C6H6 = (K+ • C6H6)

Quantity Value Units Method Reference Comment
Δr17.5 ± 0.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr19.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr24.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

C6H7N+ + Benzene = (C6H7N+ • Benzene)

By formula: C6H7N+ + C6H6 = (C6H7N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr11.9kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr22.6cal/mol*KPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M

C11H10+ + Benzene = (C11H10+ • Benzene)

By formula: C11H10+ + C6H6 = (C11H10+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr9.0kcal/molPHPMSEl-Shall and Meot-Ner (Mautner), 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr24.0cal/mol*KPHPMSEl-Shall and Meot-Ner (Mautner), 1987gas phase; M

C6H5Cl+ + Benzene = (C6H5Cl+ • Benzene)

By formula: C6H5Cl+ + C6H6 = (C6H5Cl+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr14.0kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C9H12+ + Benzene = (C9H12+ • Benzene)

By formula: C9H12+ + C6H6 = (C9H12+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr10.6kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

Nitric oxide anion + Benzene = (Nitric oxide anion • Benzene)

By formula: NO- + C6H6 = (NO- • C6H6)

Quantity Value Units Method Reference Comment
Δr41.1kcal/molICRReents and Freiser, 1981gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M

(Iron ion (1+) • Benzene) + Benzene = (Iron ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr44.7 ± 3.8kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
44.7 (+3.9,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Titanium ion (1+) • Benzene) + Benzene = (Titanium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr60.5 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
60.4 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Manganese ion (1+) • Benzene) + Benzene = (Manganese ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr48.5 ± 3.8kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
48.4 (+3.9,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Nickel ion (1+) • Benzene) + Benzene = (Nickel ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr35.1 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
35.1 (+2.8,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Copper ion (1+) • Benzene) + Benzene = (Copper ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr37.0 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
37.1 (+2.8,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(CAS Reg. No. 79431-04-2 • 4294967295Benzene) + Benzene = CAS Reg. No. 79431-04-2

By formula: (CAS Reg. No. 79431-04-2 • 4294967295C6H6) + C6H6 = CAS Reg. No. 79431-04-2

Quantity Value Units Method Reference Comment
Δr21.5 ± 4.2kcal/molTherLee and Squires, 1986gas phase; Between SiH4, tBuOH; value altered from reference due to change in acidity scale; B

Nickel ion (1+) + Benzene = (Nickel ion (1+) • Benzene)

By formula: Ni+ + C6H6 = (Ni+ • C6H6)

Quantity Value Units Method Reference Comment
Δr58.1 ± 2.6kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
58.1 (+2.5,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, References, Notes

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
MM - Michael M. Meot-Ner (Mautner)
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 C6H6+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.24378 ± 0.00007eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)179.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity173.4kcal/molN/AHunter and Lias, 1998HL

Proton affinity at 298K

Proton affinity (kcal/mol) Reference Comment
178.4Aue, Guidoni, et al., 2000Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM

Gas basicity at 298K

Gas basicity (review) (kcal/mol) Reference Comment
172.5Aue, Guidoni, et al., 2000Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM

Ionization energy determinations

IE (eV) Method Reference Comment
9.24384 ± 0.00006TENemeth, Selzle, et al., 1993LL
9.24372 ± 0.00005TEChewter, Sander, et al., 1987LBLHLM
9.20EIStahl and Maquin, 1984LBLHLM
9.2459 ± 0.0002SGrubb, Whetten, et al., 1984LBLHLM
9.23 ± 0.03EIArimura and Yoshikawa, 1984LBLHLM
9.25PEKlasinc, Kovac, et al., 1983LBLHLM
9.23PECetinkaya, Lappert, et al., 1983LBLHLM
9.25PEKimura, Katsumata, et al., 1981LLK
9.240 ± 0.002LSDuncan, Dietz, et al., 1981LLK
9.44EIClare and Sowerby, 1981LLK
9.25PEBieri and Asbrink, 1980LLK
9.22PESell, Mintz, et al., 1978LLK
9.24PEMattsson, Karlsson, et al., 1977LLK
9.25 ± 0.02PEBieri, Burger, et al., 1977LLK
9.25 ± 0.07EISelim, 1976LLK
9.24PEBehan, Johnstone, et al., 1976LLK
9.70EIBaldwin, Loudon, et al., 1976LLK
9.25CTSPitt, 1973LLK
9.2 ± 0.1EITajima, Shimizu, et al., 1972LLK
9.26 ± 0.06EIFinney and Harrison, 1972LLK
9.27PEChizhov, Kleimenov, et al., 1972LLK
9.24 ± 0.01PISergeev, Akopyan, et al., 1970RDSH
9.25 ± 0.01PIDemeo and El-Sayed, 1970RDSH
9.36 ± 0.05EIBuchs, 1970RDSH
9.241 ± 0.001PEAsbrink, Lindholm, et al., 1970RDSH
9.241TEPeatman, Borne, et al., 1969RDSH
9.24 ± 0.01PEDewar and Worley, 1969RDSH
9.25 ± 0.01PIMomigny, Goffart, et al., 1968RDSH
9.20 ± 0.04EIBock, Seidl, et al., 1968RDSH
9.24PEBaker, May, et al., 1968RDSH
9.25PEBaker, Brundle, et al., 1968RDSH
9.25 ± 0.02PEClark and Frost, 1967RDSH
9.26 ± 0.02EINounou, 1966RDSH
9.246 ± 0.005PIBrehm, 1966RDSH
9.241 ± 0.006PINicholson, 1965RDSH
9.24 ± 0.01PIDibeler and Reese, 1964RDSH
9.25PEAl-Joboury and Turner, 1964RDSH
9.2PITerenin, 1961RDSH
9.248SEl-Sayed, Kaaba, et al., 1961RDSH
9.247 ± 0.002SWilkinson, 1956RDSH
9.25 ± 0.01PIWatanabe, 1954RDSH
9.8 ± 0.1EIHustrulid, Kusch, et al., 1938RDSH
9.242 ± 0.005SPrice and Wood, 1935RDSH
9.23PEHowell, Goncalves, et al., 1984Vertical value; LBLHLM
9.25PEKovac, Mohraz, et al., 1980Vertical value; LLK
9.25PEKaim, Tesmann, et al., 1980Vertical value; LLK
9.22PESell and Kupperman, 1978Vertical value; LLK
9.23PEKobayashi, 1978Vertical value; LLK
9.3PEKlasinc, Novak, et al., 1978Vertical value; LLK
9.24 ± 0.02PESchmidt, 1977Vertical value; LLK
9.25 ± 0.05PEGower, Kane-Maguire, et al., 1977Vertical value; LLK
9.24PEBock, Kaim, et al., 1977Vertical value; LLK
9.24PEClar and Schmidt, 1976Vertical value; LLK
9.23PEKobayashi and Nagakura, 1975Vertical value; LLK
9.24PEBischof, Dewar, et al., 1974Vertical value; LLK
9.24PESchafer and Schweig, 1972Vertical value; LLK
9.25 ± 0.03PEKlessinger, 1972Vertical value; LLK
9.24PEBock, Wagner, et al., 1972Vertical value; LLK
9.2PECarlson and Anderson, 1971Vertical value; LLK
9.24PEBock and Fuss, 1971Vertical value; LLK
9.24PEGleiter, Heilbronner, et al., 1970Vertical value; RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3+28.2 ± 0.2?EIOlmsted, Street, et al., 1964RDSH
C2H2+19. ± 0.4?EILifshitz and Reuben, 1969RDSH
C2H2+18.6?EINatalis and Franklin, 1965RDSH
C2H2+32.6 ± 0.2?EIOlmsted, Street, et al., 1964RDSH
C2H3+19. ± 0.4?EILifshitz and Reuben, 1969RDSH
C3H3+13.43?LSKuhlewind, Kiermeier, et al., 1986LBLHLM
C3H3+15.34 ± 0.06C3H3EISelim, 1976LLK
C3H3+16.90C3H3PEEland, Frey, et al., 1976LLK
C3H3+13.79C3H3PIRosenstock, Larkins, et al., 1973LLK
C3H3+14.7 ± 0.1?EILifshitz and Reuben, 1969RDSH
C4H2+17.5 ± 0.3?EILifshitz and Reuben, 1969RDSH
C4H3+18.48 ± 0.07H+C2H2EISelim, 1976LLK
C4H3+17.6 ± 0.1?EILifshitz and Reuben, 1969RDSH
C4H4+13.40C2H2LSKuhlewind, Kiermeier, et al., 1986T = 0K; LBLHLM
C4H4+13.9 ± 0.1C2H2EIRosenstock, McCulloh, et al., 1977LLK
C4H4+14.17 ± 0.08C2H2PIRosenstock, McCulloh, et al., 1977LLK
C4H4+14.85C2H2PEEland, Frey, et al., 1976LLK
C4H4+13.85C2H2PIRosenstock, Larkins, et al., 1973LLK
C4H4+14.1C2H2EIHickling and Jennings, 1970RDSH
C4H4+14.5 ± 0.2C2H2EILifshitz and Reuben, 1969RDSH
C5H3+15.7 ± 0.1CH3EILifshitz and Reuben, 1969RDSH
C6H+29. ± 2.?EILifshitz and Reuben, 1969RDSH
C6H4+12.93H2LSKuhlewind, Kiermeier, et al., 1986T = 0K; LBLHLM
C6H4+14.14 ± 0.08H2EISelim, 1976LLK
C6H4+12.94H2PIRosenstock, Larkins, et al., 1973LLK
C6H4+14.04 ± 0.06H2EIBentley, Johnstone, et al., 1973LLK
C6H4+14.09 ± 0.07H2EINatalis and Franklin, 1965RDSH
C6H5+13.12 ± 0.05HEVALKlippenstein, Faulk, et al., 1993T = 0K; LL
C6H5+12.90HLSKuhlewind, Kiermeier, et al., 1986T = 0K; LBLHLM
C6H5+13.7 ± 0.1HEIRosenstock, McCulloh, et al., 1977LLK
C6H5+13.78 ± 0.08HPIRosenstock, McCulloh, et al., 1977LLK
C6H5+14.56 ± 0.07HEISelim, 1976LLK
C6H5+12.94HPIRosenstock, Larkins, et al., 1973LLK
C6H5+13.97 ± 0.06HEIBentley, Johnstone, et al., 1973LLK
C6H5+14.1 ± 0.1HEIGross, 1972LLK
C6H5+13.80 ± 0.03HPISergeev, Akopyan, et al., 1970RDSH
C6H5+14.1 ± 0.1HEILifshitz and Reuben, 1969RDSH
C6H5+13.8 ± 0.1HPIBrehm, 1966RDSH
C6H71-43-24+14.2 ± 0.2H2EILifshitz and Reuben, 1969RDSH

De-protonation reactions

C6H5- + Hydrogen cation = Benzene

By formula: C6H5- + H+ = C6H6

Quantity Value Units Method Reference Comment
Δr401.22 ± 0.50kcal/molG+TSDavico, Bierbaum, et al., 1995gas phase; Revised per Ervin and DeTuro, 2002 change in NH3 acidity. Alecu, Gao, et al., 2007 using thermal methods, agrees with this BDE: 112.8±0.6; value altered from reference due to change in acidity scale; B
Δr401.16 ± 0.21kcal/molD-EAGunion, Gilles, et al., 1992gas phase; B
Δr400.7 ± 2.5kcal/molTDEqMeot-ner and Sieck, 1986gas phase; B
Δr401. ± 10.kcal/molCIDTGraul and Squires, 1990gas phase; B
Δr398.0 ± 5.6kcal/molG+TSBohme and Young, 1971gas phase; B
Quantity Value Units Method Reference Comment
Δr392.40 ± 0.40kcal/molIMREDavico, Bierbaum, et al., 1995gas phase; Revised per Ervin and DeTuro, 2002 change in NH3 acidity. Alecu, Gao, et al., 2007 using thermal methods, agrees with this BDE: 112.8±0.6; value altered from reference due to change in acidity scale; B
Δr390.9 ± 2.0kcal/molTDEqMeot-ner and Sieck, 1986gas phase; B
Δr390.1 ± 6.5kcal/molIMRBBartmess and McIver Jr., 1979gas phase; B
Δr389.2 ± 5.5kcal/molIMRBBohme and Young, 1971gas phase; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, 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
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

Silver ion (1+) + Benzene = (Silver ion (1+) • Benzene)

By formula: Ag+ + C6H6 = (Ag+ • C6H6)

Quantity Value Units Method Reference Comment
Δr37.3 ± 1.7kcal/molCIDTRodgers and Armentrout, 2000RCD
Δr39.9 ± 4.5kcal/molRAKHo, Yang, et al., 1997RCD

(Silver ion (1+) • Benzene) + Benzene = (Silver ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr39.9 ± 4.5kcal/molRAKHo, Yang, et al., 1997RCD

Aluminum ion (1+) + Benzene = (Aluminum ion (1+) • Benzene)

By formula: Al+ + C6H6 = (Al+ • C6H6)

Quantity Value Units Method Reference Comment
Δr35.1 ± 1.9kcal/molRAKDunbar, Klippenstein, et al., 1996RCD

Gold ion (1+) + Benzene = (Gold ion (1+) • Benzene)

By formula: Au+ + C6H6 = (Au+ • C6H6)

Quantity Value Units Method Reference Comment
Δr70.0kcal/molIMRBSchroeder, Hrusak, et al., 1995RCD

Bismuth ion (1+) + Benzene = (Bismuth ion (1+) • Benzene)

By formula: Bi+ + C6H6 = (Bi+ • C6H6)

Quantity Value Units Method Reference Comment
Δr<35.5kcal/molPDisWilley, Yeh, et al., 1992RCD

Bromine anion + Benzene = (Bromine anion • Benzene)

By formula: Br- + C6H6 = (Br- • C6H6)

Quantity Value Units Method Reference Comment
Δr9.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr17.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Δr17.cal/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr2.5 ± 1.0kcal/molIMREPaul and Kebarle, 1991gas phase; B
Δr3.9 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.0423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

CH6N+ + Benzene = (CH6N+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr18.8kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr25.1cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M

C2H7O+ + Benzene = (C2H7O+ • Benzene)

By formula: C2H7O+ + C6H6 = (C2H7O+ • C6H6)

Quantity Value Units Method Reference Comment
Δr21.kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr25.cal/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
8.7491.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

C3H3+ + Benzene = (C3H3+ • Benzene)

By formula: C3H3+ + C6H6 = (C3H3+ • C6H6)

Quantity Value Units Method Reference Comment
Δr9.0kcal/molHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr9.cal/mol*KHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr6.kcal/molHPMSField, Hamlet, et al., 1969gas phase; Entropy change is questionable; M

C3H9Si+ + Benzene = (C3H9Si+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr23.9kcal/molPHPMSWojtyniak and Stone, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr34.7cal/mol*KPHPMSWojtyniak and Stone, 1986gas phase; M

C3H10N+ + Benzene = (C3H10N+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr15.9kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr27.7cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M

C4H4S+ + Benzene = (C4H4S+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr13.kcal/molHPMSField, Hamlet, et al., 1969gas phase; M
Quantity Value Units Method Reference Comment
Δr23.cal/mol*KHPMSField, Hamlet, et al., 1969gas phase; M

C4H9+ + Benzene = (C4H9+ • Benzene)

By formula: C4H9+ + C6H6 = (C4H9+ • C6H6)

Quantity Value Units Method Reference Comment
Δr22.kcal/molPHPMSSen Sharma, Ikuta, et al., 1982gas phase; forms protonated t-butylbenzene; M
Quantity Value Units Method Reference Comment
Δr49.cal/mol*KPHPMSSen Sharma, Ikuta, et al., 1982gas phase; forms protonated t-butylbenzene; M

C6H5Cl+ + Benzene = (C6H5Cl+ • Benzene)

By formula: C6H5Cl+ + C6H6 = (C6H5Cl+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr14.0kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C6H6+ + Benzene = (C6H6+ • Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr14. ± 8.kcal/molAVGN/AAverage of 7 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Δr28.8cal/mol*KPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M
Δr27.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Δr23.cal/mol*KHPMSField, Hamlet, et al., 1969gas phase; M

(C6H6+ • Benzene) + Benzene = (C6H6+ • 2Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.8 ± 0.5kcal/molPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M
Quantity Value Units Method Reference Comment
Δr19.8cal/mol*KPHPMSHiraoka, Fujimaki, et al., 1991gas phase; M

(C6H6+ • 2Benzene) + Benzene = (C6H6+ • 3Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.0kcal/molPHPMSHiraoka, Fujimaki, et al., 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AHiraoka, Fujimaki, et al., 1991gas phase; Entropy change calculated or estimated; M

(C6H6+ • 5Benzene) + Benzene = (C6H6+ • 6Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.5kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 6Benzene) + Benzene = (C6H6+ • 7Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.3kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 7Benzene) + Benzene = (C6H6+ • 8Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.0kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 8Benzene) + Benzene = (C6H6+ • 9Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.9kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 9Benzene) + Benzene = (C6H6+ • 10Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.8kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 10Benzene) + Benzene = (C6H6+ • 11Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr7.8kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 11Benzene) + Benzene = (C6H6+ • 12Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.0kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 12Benzene) + Benzene = (C6H6+ • 13Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.3kcal/molPDissBeck and Hecht, 1991gas phase; M

(C6H6+ • 13Benzene) + Benzene = (C6H6+ • 14Benzene)

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

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr8.1kcal/molPDissBeck and Hecht, 1991gas phase; M

C6H6NO- + 2Benzene = C12H12NO-

By formula: C6H6NO- + 2C6H6 = C12H12NO-

Quantity Value Units Method Reference Comment
Δr17.5 ± 2.3kcal/molN/ALe Barbu, Schiedt, et al., 2002gas phase; Affinity is difference in EAs of lesser solvated species; B

C6H7+ + Benzene = (C6H7+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr11.0kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr24.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C6H7N+ + Benzene = (C6H7N+ • Benzene)

By formula: C6H7N+ + C6H6 = (C6H7N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr11.9kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr22.6cal/mol*KPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M

C7H8+ + Benzene = (C7H8+ • Benzene)

By formula: C7H8+ + C6H6 = (C7H8+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr12.2kcal/molMPIErnstberger, Krause, et al., 1990gas phase; M
Δr5.5kcal/molPIRuhl, Bisling, et al., 1986gas phase; from vIP of perpendicular dimer; M
Δr12.4kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C7H9N+ + Benzene = (C7H9N+ • Benzene)

By formula: C7H9N+ + C6H6 = (C7H9N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr12.3kcal/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
Δr4.6kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C8H11N+ + Benzene = (C8H11N+ • Benzene)

By formula: C8H11N+ + C6H6 = (C8H11N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr10.0kcal/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
Δr2.2kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C9H12+ + Benzene = (C9H12+ • Benzene)

By formula: C9H12+ + C6H6 = (C9H12+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr10.6kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C9H13N+ + Benzene = (C9H13N+ • Benzene)

By formula: C9H13N+ + C6H6 = (C9H13N+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr11.2kcal/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

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.6331.PHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

C10H10Fe+ + Benzene = (C10H10Fe+ • Benzene)

By formula: C10H10Fe+ + C6H6 = (C10H10Fe+ • C6H6)

Quantity Value Units Method Reference Comment
Δr8.kcal/molPHPMSMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M
Quantity Value Units Method Reference Comment
Δr20.cal/mol*KN/AMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.0252.PHPMSMeot-Ner (Mautner), 1989gas phase; Entropy change calculated or estimated, ΔrH<, DG<; M

C11H10+ + Benzene = (C11H10+ • Benzene)

By formula: C11H10+ + C6H6 = (C11H10+ • C6H6)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr9.0kcal/molPHPMSEl-Shall and Meot-Ner (Mautner), 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr24.0cal/mol*KPHPMSEl-Shall and Meot-Ner (Mautner), 1987gas phase; M

Cadmium ion (1+) + Benzene = (Cadmium ion (1+) • Benzene)

By formula: Cd+ + C6H6 = (Cd+ • C6H6)

Quantity Value Units Method Reference Comment
Δr32.5 ± 4.5kcal/molRAKHo, Yang, et al., 1997RCD

Chlorine anion + Benzene = (Chlorine anion • Benzene)

By formula: Cl- + C6H6 = (Cl- • C6H6)

Quantity Value Units Method Reference Comment
Δr6.00 ± 0.46kcal/molN/ATschurl, Ueberfluss, et al., 2007gas phase; B
Δr9.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Δr9.90kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr8.7kcal/molPHPMSPaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Δr10.4kcal/molPHPMSSunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr17.9cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Δr17.cal/mol*KN/APaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
Δr17.1cal/mol*KN/ALarson and McMahon, 1984, 2gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δr22.cal/mol*KN/ASunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr4.0 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B
Δr3.8 ± 1.6kcal/molIMREChowdhury and Kebarle, 1986gas phase; B
Δr4.8 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr3.80kcal/molIMREFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.6300.PHPMSPaul and Kebarle, 1991gas phase; from Ph. D. thesis of S. Chowdhury, Entropy change calculated or estimated; M
3.8300.PHPMSChowdhury and Kebarle, 1986gas phase; M
3.8300.PHPMSSunner, Nishizawa, et al., 1981gas phase; Entropy change calculated or estimated; M

Cobalt ion (1+) + Benzene = (Cobalt ion (1+) • Benzene)

By formula: Co+ + C6H6 = (Co+ • C6H6)

Quantity Value Units Method Reference Comment
Δr61.2 ± 2.6kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
61.1 (+2.5,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Cobalt ion (1+) • Benzene) + Benzene = (Cobalt ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr39.9 ± 3.3kcal/molCIDTMeyer, Khan, et al., 1995RCD
Quantity Value Units Method Reference Comment
Δr27.8cal/mol*KSIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(490 K); M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
39.9 (+3.2,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M
27.0 (+1.0,-0.) SIDTKemper, Bushnell, et al., 1993gas phase; ΔrS(490 K); M

Chromium ion (1+) + Benzene = (Chromium ion (1+) • Benzene)

By formula: Cr+ + C6H6 = (Cr+ • C6H6)

Quantity Value Units Method Reference Comment
Δr40.2kcal/molMIDLin, Chen, et al., 1997RCD
Δr39.2 ± 3.3kcal/molRAKLin and Dunbar, 1997RCD
Δr40.6 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Chromium ion (1+) • Benzene) + Benzene = (Chromium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD
Δr55.4 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.3 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Cesium ion (1+) + Benzene = (Cesium ion (1+) • Benzene)

By formula: Cs+ + C6H6 = (Cs+ • C6H6)

Quantity Value Units Method Reference Comment
Δr15.4 ± 1.2kcal/molCIDTAmicangelo and Armentrout, 2000RCD

(Cesium ion (1+) • Benzene) + Benzene = (Cesium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr14.0 ± 1.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD

Copper ion (1+) + Benzene = (Copper ion (1+) • Benzene)

By formula: Cu+ + C6H6 = (Cu+ • C6H6)

Quantity Value Units Method Reference Comment
Δr52.1 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
52.1 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Copper ion (1+) • Benzene) + Benzene = (Copper ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr37.0 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
37.1 (+2.8,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Fluorine anion + Benzene = (Fluorine anion • Benzene)

By formula: F- + C6H6 = (F- • C6H6)

Quantity Value Units Method Reference Comment
Δr15.30kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr9.40kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

Iron ion (1+) + Benzene = (Iron ion (1+) • Benzene)

By formula: Fe+ + C6H6 = (Fe+ • C6H6)

Quantity Value Units Method Reference Comment
Δr47.1kcal/molRAKGapeev and Dunbar, 2002RCD
Δr49.5 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
49.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Iron ion (1+) • Benzene) + Benzene = (Iron ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr44.7 ± 3.8kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
44.7 (+3.9,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

NH4+ + Benzene = (NH4+ • Benzene)

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

Quantity Value Units Method Reference Comment
Δr19.3kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr23.3cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M

(NH4+ • Benzene) + Benzene = (NH4+ • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr17.0kcal/molPHPMSLiebman, Romm, et al., 1991gas phase; M
Quantity Value Units Method Reference Comment
Δr30.5cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase; M

(NH4+ • 2Benzene) + Benzene = (NH4+ • 3Benzene)

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

Quantity Value Units Method Reference Comment
Δr14.2kcal/molPHPMSLiebman, Romm, et al., 1991gas phase; M
Quantity Value Units Method Reference Comment
Δr32.9cal/mol*KPHPMSLiebman, Romm, et al., 1991gas phase; M

Iodide + Benzene = (Iodide • Benzene)

By formula: I- + C6H6 = (I- • C6H6)

Quantity Value Units Method Reference Comment
Δr6.1 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B,M
Δr9.1 ± 1.0kcal/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M
Quantity Value Units Method Reference Comment
Δr14.2cal/mol*KPHPMSHiraoka, Mizuse, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr1.8 ± 2.6kcal/molTDAsHiraoka, Mizuse, et al., 1988gas phase; B

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

By formula: K+ + C6H6 = (K+ • C6H6)

Quantity Value Units Method Reference Comment
Δr17.5 ± 0.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr19.2kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr24.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • Benzene) + Benzene = (Potassium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr16.1 ± 1.7kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr18.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr33.9cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • 2Benzene) + Benzene = (Potassium ion (1+) • 3Benzene)

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

Quantity Value Units Method Reference Comment
Δr14.5kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr32.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • 3Benzene) + Benzene = (Potassium ion (1+) • 4Benzene)

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

Quantity Value Units Method Reference Comment
Δr12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr41.4cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; M

(Potassium ion (1+) • Benzene • Water) + Benzene = (Potassium ion (1+) • 2Benzene • Water)

By formula: (K+ • C6H6 • H2O) + C6H6 = (K+ • 2C6H6 • H2O)

Quantity Value Units Method Reference Comment
Δr14.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr30.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; From thermochemical cycle,switching reaction(K+ 3H2O)C6H6, Searles and Kebarle, 1969; M

(Potassium ion (1+) • Benzene • 2Water) + Benzene = (Potassium ion (1+) • 2Benzene • 2Water)

By formula: (K+ • C6H6 • 2H2O) + C6H6 = (K+ • 2C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
Δr12.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr33.7cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+ 3H2O)C6H6; Searles and Kebarle, 1969; M

(Potassium ion (1+) • Water) + Benzene = (Potassium ion (1+) • Benzene • Water)

By formula: (K+ • H2O) + C6H6 = (K+ • C6H6 • H2O)

Quantity Value Units Method Reference Comment
Δr16.8kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr27.1cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)2H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 2Water) + Benzene = (Potassium ion (1+) • Benzene • 2Water)

By formula: (K+ • 2H2O) + C6H6 = (K+ • C6H6 • 2H2O)

Quantity Value Units Method Reference Comment
Δr13.4kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr24.3cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)3H2O; Searles and Kebarle, 1969; M

(Potassium ion (1+) • 3Water) + Benzene = (Potassium ion (1+) • Benzene • 3Water)

By formula: (K+ • 3H2O) + C6H6 = (K+ • C6H6 • 3H2O)

Quantity Value Units Method Reference Comment
Δr12.6kcal/molHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M
Quantity Value Units Method Reference Comment
Δr27.6cal/mol*KHPMSSunner, Nishizawa, et al., 1981gas phase; switching reaction(K+)4H2O; Searles and Kebarle, 1969; M

Lithium ion (1+) + Benzene = (Lithium ion (1+) • Benzene)

By formula: Li+ + C6H6 = (Li+ • C6H6)

Quantity Value Units Method Reference Comment
Δr38.5 ± 3.2kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr37.9kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M
Δr36.5kcal/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
Δr27.5cal/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M
Quantity Value Units Method Reference Comment
Δr29.7kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 extrapolated; M

(Lithium ion (1+) • Benzene) + Benzene = (Lithium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr24.9 ± 1.7kcal/molCIDTAmicangelo and Armentrout, 2000RCD

Magnesium ion (1+) + Benzene = (Magnesium ion (1+) • Benzene)

By formula: Mg+ + C6H6 = (Mg+ • C6H6)

Quantity Value Units Method Reference Comment
Δr32.0 ± 2.3kcal/molCIDTAndersen, Muntean, et al., 2000RCD
Δr37.0kcal/molRAKGapeev and Dunbar, 2000RCD

Manganese ion (1+) + Benzene = (Manganese ion (1+) • Benzene)

By formula: Mn+ + C6H6 = (Mn+ • C6H6)

Quantity Value Units Method Reference Comment
Δr34.4kcal/molMIDLin, Chen, et al., 1997RCD
Δr31.8 ± 2.2kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
31.8 (+2.1,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Manganese ion (1+) • Benzene) + Benzene = (Manganese ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr48.5 ± 3.8kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
48.4 (+3.9,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Nitric oxide anion + Benzene = C6H6NO-

By formula: NO- + C6H6 = C6H6NO-

Quantity Value Units Method Reference Comment
Δr9.5 ± 2.3kcal/molN/ALe Barbu, Schiedt, et al., 2002gas phase; Affinity is difference in EAs of lesser solvated species; B

Nitric oxide anion + Benzene = (Nitric oxide anion • Benzene)

By formula: NO- + C6H6 = (NO- • C6H6)

Quantity Value Units Method Reference Comment
Δr41.1kcal/molICRReents and Freiser, 1981gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M

Sodium ion (1+) + Benzene = (Sodium ion (1+) • Benzene)

By formula: Na+ + C6H6 = (Na+ • C6H6)

Quantity Value Units Method Reference Comment
Δr22.8 ± 1.4kcal/molCIDCAmicangelo and Armentrout, 2001Anchor NH3=24.41; RCD
Δr21.1 ± 1.2kcal/molCIDTAmicangelo and Armentrout, 2000RCD
Δr21.1 ± 1.1kcal/molCIDTArmentrout and Rodgers, 2000RCD
Δr28.0kcal/molHPMSGuo, Purnell, et al., 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr31.2cal/mol*KHPMSGuo, Purnell, et al., 1990gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
15.7298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

(Sodium ion (1+) • Benzene) + Benzene = (Sodium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr20. ± 1.kcal/molAVGN/AAverage of 7 values; Individual data points

Nickel ion (1+) + Benzene = (Nickel ion (1+) • Benzene)

By formula: Ni+ + C6H6 = (Ni+ • C6H6)

Quantity Value Units Method Reference Comment
Δr58.1 ± 2.6kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
58.1 (+2.5,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Nickel ion (1+) • Benzene) + Benzene = (Nickel ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr35.1 ± 2.9kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
35.1 (+2.8,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Oxygen anion + Benzene = C6H6O2-

By formula: O2- + C6H6 = C6H6O2-

Quantity Value Units Method Reference Comment
Δr14.1 ± 2.3kcal/molN/ALe Barbu, Schiedt, et al., 2002gas phase; Affinity is difference in EAs of lesser solvated species; B

Lead ion (1+) + Benzene = (Lead ion (1+) • Benzene)

By formula: Pb+ + C6H6 = (Pb+ • C6H6)

Quantity Value Units Method Reference Comment
Δr26.2kcal/molPHPMSGuo, Purnell, et al., 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr21.6cal/mol*KPHPMSGuo, Purnell, et al., 1990gas phase; M

Rubidium ion (1+) + Benzene = (Rubidium ion (1+) • Benzene)

By formula: Rb+ + C6H6 = (Rb+ • C6H6)

Quantity Value Units Method Reference Comment
Δr16.4 ± 0.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD

(Rubidium ion (1+) • Benzene) + Benzene = (Rubidium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr15.0 ± 1.9kcal/molCIDTAmicangelo and Armentrout, 2000RCD

Titanium ion (1+) + Benzene = (Titanium ion (1+) • Benzene)

By formula: Ti+ + C6H6 = (Ti+ • C6H6)

Quantity Value Units Method Reference Comment
Δr50.9kcal/molRAKGapeev and Dunbar, 2002RCD
Δr61.9 ± 2.2kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
61.8 (+2.1,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Titanium ion (1+) • Benzene) + Benzene = (Titanium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr60.5 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
60.4 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Vanadium ion (1+) + Benzene = (Vanadium ion (1+) • Benzene)

By formula: V+ + C6H6 = (V+ • C6H6)

Quantity Value Units Method Reference Comment
Δr>55.kcal/molRAKGapeev and Dunbar, 2002RCD
Δr55.9 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.8 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Vanadium ion (1+) • Benzene) + Benzene = (Vanadium ion (1+) • 2Benzene)

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

Quantity Value Units Method Reference Comment
Δr58.8 ± 4.4kcal/molCIDMeyer, Khan, et al., 1995gas phase; ΔrH(0k), guided ion beam CID; M,RCD

(V- • Benzene, fluoro-) + Benzene = (V- • Benzene • Benzene, fluoro-)

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

Quantity Value Units Method Reference Comment
Δr3. ± 15.kcal/molN/AJudai, Hirano, et al., 1997gas phase; B

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, References, Notes

Data compiled by: Coblentz Society, Inc.

Data compiled by: Tanya L. Myers, Russell G. Tonkyn, Ashley M. Oeck, Tyler O. Danby, John S. Loring, Matthew S. Taubman, Stephen W. Sharpe, Jerome C. Birnbaum, and Timothy J. Johnson

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

Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty


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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Mass spectrum
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Additional Data

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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, 1990.
NIST MS number 114388

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.


UV/Visible spectrum

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Romand and Vodar, 1951
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 118
Instrument n.i.g.
Melting point 5.5
Boiling point 80.0

Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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: Takehiko Shimanouchi

Symmetry:   D6h     Symmetry Number σ = 12


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1g 1 CH str 3062  C  ia 3061.9 VS p liq.
a1g 2 Ring str 992  C  ia 991.6 VS p liq.
a2g 3 CH bend 1326  E  ia 1326 VW liq.
a2u 4 CH bend 673  B 673 S gas  ia
b1u 5 CH str 3068  C 3067.57 VW sln.  ia
b1u 6 Ring deform 1010  C 1010 W sln.  ia
b2g 7 CH bend 995  E  ia  ia OC197207)
b2g 8 Ring deform 703  E  ia  ia OC198, ν208)
b2u 9 Ring str 1310  C 1310 W liq.  ia
b2u 10 CH bend 1150  C 1150 W liq.  ia
e1g 11 CH bend 849  C  ia 848.9 M dp liq.
e1u 12 CH str 3063  E 3080 S liq.  ia FR1316)
e1u 12 CH str 3063  E 3030 S liq.  ia FR1316)
e1u 13 Ring str + deform 1486  B 1486 S gas  ia
e1u 14 CH bend 1038  B 1038 S gas  ia
e2g 15 CH str 3047  C  ia 3046.8 S dp liq.
e2g 16 Ring str 1596  E  ia 1606.4 S dp liq. FR218)
e2g 16 Ring str 1596  E  ia 1584.6 S dp liq. FR218)
e2g 17 CH bend 1178  C  ia 1178.0 S dp liq.
e2g 18 Ring deform 606  C  ia 605.6 S dp liq.
e2u 19 CH bend 975  C 975 W liq.  ia
e2u 20 Ring deform 410  C 417.7 S sln.  ia
e2u 20 Ring deform 410  C 403.0 S sln.  ia

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
iaInactive
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
OCFrequency estimated from an overtone or a combination tone indicated in the parentheses.
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
E15~30 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Vibrational and/or electronic energy levels, Notes

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

Roux, Temprado, et al., 2008
Roux, M.V.; Temprado, M.; Chickos, J.S.; Nagano, Y., Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons, J. Phys. Chem. Ref. Data, 2008, 37, 4, 1855-1996. [all data]

Good and Smith, 1969
Good, W.D.; Smith, N.K., Enthalpies of combustion of toluene, benzene, cyclohexane, cyclohexene, methylcyclopentane, 1-methylcyclopentene, and n-hexane, J. Chem. Eng. Data, 1969, 14, 102-106. [all data]

Prosen, Gilmont, et al., 1945
Prosen, E.J.; Gilmont, R.; Rossini, F.D., Heats of combustion of benzene, toluene, ethyl-benzene, o-xylene, m-xylene, p-xylene, n-propylbenzene, and styrene, J. Res. NBS, 1945, 34, 65-70. [all data]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes, J. Res. NBS, 1946, 36, 455-461. [all data]

Landrieu, Baylocq, et al., 1929
Landrieu, P.; Baylocq, F.; Johnson, J.R., Etude thermochimique dans la serie furanique, Bull. Soc. Chim. France, 1929, 45, 36-49. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Todd S.S., 1978
Todd S.S., Vapor-flow calorimetry of benzene, J. Chem. Thermodyn., 1978, 10, 641-648. [all data]

Montgomery J.B., 1942
Montgomery J.B., The heat capacity of organic vapors. IV. Benzene, fluorobenzene, toluene, cyclohexane, methylcyclohexane and cyclohexene, J. Am. Chem. Soc., 1942, 64, 2375-2377. [all data]

Pitzer K.S., 1943
Pitzer K.S., The thermodynamics and molecular structure of benzene and its methyl derivatives, J. Am. Chem. Soc., 1943, 65, 803-829. [all data]

Scott D.W., 1947
Scott D.W., The heat capacity of benzene vapor. The contribution of anharmonicity, J. Chem. Phys., 1947, 15, 565-568. [all data]

Tschurl, Ueberfluss, et al., 2007
Tschurl, M.; Ueberfluss, C.; Boesl, U., Anion photoelectron, photodetachment, and infrared dissociation spectra of Cl-center dot C6H6, Chem. Phys. Lett., 2007, 439, 1-3, 23-28, https://doi.org/10.1016/j.cplett.2007.03.059 . [all data]

Hiraoka, Mizuse, et al., 1988
Hiraoka, K.; Mizuse, S.; Yamabe, S., Determination of the Stabilities and Structures of X-(C6H6) Clusters (X = Cl, Br, and I), Chem. Phys. Lett., 1988, 147, 2-3, 174, https://doi.org/10.1016/0009-2614(88)85078-4 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [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]

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]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-, Can. J. Chem., 1982, 60, 1907. [all data]

Chowdhury and Kebarle, 1986
Chowdhury, S.; Kebarle, P., Role of Binding Energies in A-.B and A.B- Complexes in the Kinetics of Gas Phase Electron Transfer Reactions:A- + B = A + B- Involving Perfluoro Compounds: SF6, C6F11CF3, J. Chem. Phys., 1986, 85, 9, 4989, https://doi.org/10.1063/1.451687 . [all data]

Davico, Bierbaum, et al., 1995
Davico, G.E.; Bierbaum, V.M.; Depuy, C.H.; Ellison, G.B.; Squires, R.R., The C-H bond energy of benzene, J. Am. Chem. Soc., 1995, 117, 9, 2590, https://doi.org/10.1021/ja00114a023 . [all data]

Ervin and DeTuro, 2002
Ervin, K.M.; DeTuro, V.F., Anchoring the gas-phase acidity scale, J. Phys. Chem. A, 2002, 106, 42, 9947-9956, https://doi.org/10.1021/jp020594n . [all data]

Alecu, Gao, et al., 2007
Alecu, I.M.; Gao, Y.D.; Hsieh, P.C.; Sand, J.P.; Ors, A.; McLeod, A.; Marshall, P., Studies of the kinetics and thermochemistry of the forward and reverse reaction Cl+C6H6=HCl+C6H5, J. Phys. Chem. A, 2007, 111, 19, 3970-3976, https://doi.org/10.1021/jp067212o . [all data]

Gunion, Gilles, et al., 1992
Gunion, R.F.; Gilles, M.K.; Polak, M.L.; Lineberger, W.C., Ultraviolet Photoelectron Spectroscopy of the Phenide, Benzyl, and Phenoxide Anions., Int. J. Mass Spectrom. Ion Proc., 1992, 117, 601, https://doi.org/10.1016/0168-1176(92)80115-H . [all data]

Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W., Relative acidities of water and methanol, and the stabilities of the dimer adducts, J. Phys. Chem., 1986, 90, 6687. [all data]

Graul and Squires, 1990
Graul, S.T.; Squires, R.R., Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions, J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007 . [all data]

Bohme and Young, 1971
Bohme, D.K.; Young, L.B., Electron affinities from thermal proton transfer reactions: C6H5 and C6H5CH2, Can. J. Chem., 1971, 49, 2918. [all data]

Bartmess and McIver Jr., 1979
Bartmess, J.E.; McIver Jr., The Gas Phase Acidity Scale in Gas Phase Ion Chemistry, Gas Phase Ion Chemistry, V. 2, M.T. Bowers, Ed., Academic Press, NY, 1979, Ch. 11, Elsevier, 1979. [all data]

Hiraoka, Fujimaki, et al., 1991
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Notes

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