Benzene, 1,3-dichloro-

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Reaction thermochemistry data

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

Data compiled as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

C6H3Cl2- + Hydrogen cation = Benzene, 1,3-dichloro-

By formula: C6H3Cl2- + H+ = C6H4Cl2

Quantity Value Units Method Reference Comment
Δr374.0 ± 2.1kcal/molG+TSSchlosser, Marzi, et al., 2001gas phase; Acid: m-dichlorobenzene. Anion assigned based on ab initio calculations.; B
Quantity Value Units Method Reference Comment
Δr366.3 ± 2.0kcal/molIMRESchlosser, Marzi, et al., 2001gas phase; Acid: m-dichlorobenzene. Anion assigned based on ab initio calculations.; B

Benzene, 1,4-dichloro- = Benzene, 1,3-dichloro-

By formula: C6H4Cl2 = C6H4Cl2

Quantity Value Units Method Reference Comment
Δr0.96kcal/molEqkGodnev and Sverdlin, 1961gas phase; Correction of 56GOD/SVE; ALS

Gas phase ion energetics data

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

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)9.10 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Δf(+) ion215.9kcal/molN/AN/A 
Quantity Value Units Method Reference Comment
ΔfH(+) ion,0K218.9kcal/molN/AN/A 

Ionization energy determinations

IE (eV) Method Reference Comment
9.10 ± 0.02PIPECOOlesik, Baer, et al., 1986LBLHLM
9.14 ± 0.03PERuscic, Klasinc, et al., 1981LLK
9.26PEKimura, Katsumata, et al., 1981LLK
9.12 ± 0.02PEMaier and Marthaler, 1978LLK
9.11 ± 0.01EQLias and Ausloos, 1978LLK
9.12 ± 0.01PIWatanabe, Nakayama, et al., 1962RDSH
9.28PEFujisawa, Oonishi, et al., 1991Vertical value; LL
9.15PEStreets and Ceasar, 1973Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H4Cl+13.3 ± 0.1ClEIBrown, 1970RDSH

De-protonation reactions

C6H3Cl2- + Hydrogen cation = Benzene, 1,3-dichloro-

By formula: C6H3Cl2- + H+ = C6H4Cl2

Quantity Value Units Method Reference Comment
Δr374.0 ± 2.1kcal/molG+TSSchlosser, Marzi, et al., 2001gas phase; Acid: m-dichlorobenzene. Anion assigned based on ab initio calculations.; B
Quantity Value Units Method Reference Comment
Δr366.3 ± 2.0kcal/molIMRESchlosser, Marzi, et al., 2001gas phase; Acid: m-dichlorobenzene. Anion assigned based on ab initio calculations.; B

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes

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

Schlosser, Marzi, et al., 2001
Schlosser, M.; Marzi, E.; Cottet, F.; Buker, H.H.; Nibbering, N.M.M., The acidity of chloro-substituted benzenes: A comparison of gas phase, ab initio, and kinetic data, Chem. Eur. J., 2001, 7, 16, 3511-3516, https://doi.org/10.1002/1521-3765(20010817)7:16<3511::AID-CHEM3511>3.0.CO;2-U . [all data]

Godnev and Sverdlin, 1961
Godnev, I.N.; Sverdlin, A.S., Equilibrium and dichlorobenzene isomer (Corrections), Russ. J. Phys. Chem. (Engl. Transl.), 1961, 35, 231-232. [all data]

Olesik, Baer, et al., 1986
Olesik, S.; Baer, T.; Morrow, J.C., Dissociation rates of energy-selected dichloro- and dibromobenzene ions, J. Phys. Chem., 1986, 90, 3563. [all data]

Ruscic, Klasinc, et al., 1981
Ruscic, B.; Klasinc, L.; Wolf, A.; Knop, J.V., Photoelectron spectra of and Ab initio calculations on chlorobenzenes. 1. Chlorobenzene and dichlorobenzenes, J. Phys. Chem., 1981, 85, 1486. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Maier and Marthaler, 1978
Maier, J.P.; Marthaler, O., Emission spectra of the radical cations of 1,3-dichlorobenzene, 1,4-dichlorobenzene and 1,3,5-trichlorobenzene in the gas phase, Chem. Phys., 1978, 32, 419. [all data]

Lias and Ausloos, 1978
Lias, S.G.; Ausloos, P.J., eIonization energies of organic compounds by equilibrium measurements, J. Am. Chem. Soc., 1978, 100, 6027. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Fujisawa, Oonishi, et al., 1991
Fujisawa, S.; Oonishi, I.; Masuda, S.; Ohno, K.; Harada, Y., Penning ionization electron spectroscopy of dichlorobenzenes, J. Phys. Chem., 1991, 95, 4250. [all data]

Streets and Ceasar, 1973
Streets, D.G.; Ceasar, G.P., Inductive mesomeric effects on the π orbitals of halobenzenes, Mol. Phys., 1973, 26, 1037. [all data]

Brown, 1970
Brown, P., Kinetic studies in mass spectrometry-IV. The [M - Cl] reaction in substituted chlorobenzenes and the question of molecular ion isomerization, Org. Mass Spectrom., 1970, 3, 639. [all data]


Notes

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