Benzene, bromo-

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Reaction thermochemistry data

Go To: Top, Henry's Law data, Ion clustering data, 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C6H4Br- + Hydrogen cation = Benzene, bromo-

By formula: C6H4Br- + H+ = C6H5Br

Quantity Value Units Method Reference Comment
Δr1620. ± 10.kJ/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Δr1607. ± 8.8kJ/molG+TSLinnert and Riveros, 1994gas phase; Acidity between quinoline and benzonitrile; B
Quantity Value Units Method Reference Comment
Δr1586. ± 11.kJ/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Δr1572. ± 8.4kJ/molIMRBLinnert and Riveros, 1994gas phase; Acidity between quinoline and benzonitrile; B

C6H7N+ + Benzene, bromo- = (C6H7N+ • Benzene, bromo-)

By formula: C6H7N+ + C6H5Br = (C6H7N+ • C6H5Br)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr56.9kJ/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Free energy of reaction

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

C6H4Br- + Hydrogen cation = Benzene, bromo-

By formula: C6H4Br- + H+ = C6H5Br

Quantity Value Units Method Reference Comment
Δr1605. ± 8.8kJ/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Quantity Value Units Method Reference Comment
Δr1570. ± 9.2kJ/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B

C6H4Br- + Hydrogen cation = Benzene, bromo-

By formula: C6H4Br- + H+ = C6H5Br

Quantity Value Units Method Reference Comment
Δr1643. ± 8.4kJ/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Quantity Value Units Method Reference Comment
Δr1611. ± 8.8kJ/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B

Ethylbenzene + Benzene, bromo- = C8H9Br + Benzene

By formula: C8H10 + C6H5Br = C8H9Br + C6H6

Quantity Value Units Method Reference Comment
Δr-0.59 ± 0.021kJ/molCmMerdzhanov, Alenin, et al., 1982gas phase; Heat of isomerization at 349 K; ALS

2Benzene, bromo- + Mercury(II) bromide = Mercury, diphenyl- + 2Bromine

By formula: 2C6H5Br + Br2Hg = C12H10Hg + 2Br2

Quantity Value Units Method Reference Comment
Δr328.6 ± 3.3kJ/molCmChernick, Skinner, et al., 1956liquid phase; ALS

Chlorine anion + Benzene, bromo- = (Chlorine anion • Benzene, bromo-)

By formula: Cl- + C6H5Br = (Cl- • C6H5Br)

Quantity Value Units Method Reference Comment
Δr28.5kJ/molTDEqFrench, Ikuta, et al., 1982gas phase; B,M

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)

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

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
0.545300.MN/A 
0.535400.XN/A 
0.47 QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species.
0.48 LN/A 
0.41 MN/A 
0.48 VN/A 

Ion clustering data

Go To: Top, Reaction thermochemistry data, Henry's Law data, 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

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

C6H7N+ + Benzene, bromo- = (C6H7N+ • Benzene, bromo-)

By formula: C6H7N+ + C6H5Br = (C6H7N+ • C6H5Br)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr56.9kJ/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Free energy of reaction

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

Chlorine anion + Benzene, bromo- = (Chlorine anion • Benzene, bromo-)

By formula: Cl- + C6H5Br = (Cl- • C6H5Br)

Quantity Value Units Method Reference Comment
Δr28.5kJ/molTDEqFrench, Ikuta, et al., 1982gas phase; B,M

UV/Visible spectrum

Go To: Top, Reaction thermochemistry data, Henry's Law data, Ion clustering data, References, Notes

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

Data compiled by: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

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Source McClure, Blake, et al., 1954
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. 824
Instrument n.i.g.
Melting point -30.6
Boiling point 156.0

References

Go To: Top, Reaction thermochemistry data, Henry's Law data, Ion clustering data, UV/Visible spectrum, Notes

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

Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R., Determination of the gas-phase acidities of halogen-substituted aromatic compounds using the silane-cleavage method, J. Mass Spectrom., 1995, 30, 1, 17, https://doi.org/10.1002/jms.1190300105 . [all data]

Linnert and Riveros, 1994
Linnert, H.V.; Riveros, J.M., Benzyne-related mechanisms in the gas phase ion molecule reactions of haloarenes, Int. J. Mass Spectrom. Ion Proc., 1994, 140, 1, 163, https://doi.org/10.1016/0168-1176(94)04079-6 . [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]

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]

Chernick, Skinner, et al., 1956
Chernick, C.L.; Skinner, H.A.; Wadso, I., Thermochemistry of metallic alkyls. Part 7.-The heat of formation of mercury diphenyl, and of mercury phenyl chloride, Trans. Faraday Soc., 1956, 52, 1088-1093. [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]

McClure, Blake, et al., 1954
McClure, D.S.; Blake, N.W.; Hanst, P.L., Singlet-triplet absorption bands in some halogen substituted aromatic compounds, J. Chem. Phys., 1954, 22, 2, 255-258. [all data]


Notes

Go To: Top, Reaction thermochemistry data, Henry's Law data, Ion clustering data, UV/Visible spectrum, References