Benzene, 1,3-dimethyl-

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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:
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. 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

C3H9Si+ + Benzene, 1,3-dimethyl- = (C3H9Si+ • Benzene, 1,3-dimethyl-)

By formula: C3H9Si+ + C8H10 = (C3H9Si+ • C8H10)

Quantity Value Units Method Reference Comment
Δr121.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr147.J/mol*KN/AWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
53.1468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M

C9H12+ + Benzene, 1,3-dimethyl- = (C9H12+ • Benzene, 1,3-dimethyl-)

By formula: C9H12+ + C8H10 = (C9H12+ • C8H10)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr59.8kJ/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/AMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
26.300.PHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

C8H9- + Hydrogen cation = Benzene, 1,3-dimethyl-

By formula: C8H9- + H+ = C8H10

Quantity Value Units Method Reference Comment
Δr1594. ± 11.kJ/molG+TSCaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1564. ± 10.kJ/molIMRECaldwell and Bartmessgas phase; value altered from reference due to change in acidity scale; B

Chlorine anion + Benzene, 1,3-dimethyl- = (Chlorine anion • Benzene, 1,3-dimethyl-)

By formula: Cl- + C8H10 = (Cl- • C8H10)

Quantity Value Units Method Reference Comment
Δr16.3kJ/molTDEqFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
18.300.PHPMSFrench, Ikuta, et al., 1982gas phase; 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
0.134200.LN/A 
0.164000.MN/A 
0.15 QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species.
0.146000.XN/A 
0.133300.XN/A 
0.14 LN/A 
0.16 VN/A 
0.17 VBohon and Claussen, 1951 

Ion clustering data

Go To: Top, Reaction thermochemistry data, Henry's Law 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 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

C3H9Si+ + Benzene, 1,3-dimethyl- = (C3H9Si+ • Benzene, 1,3-dimethyl-)

By formula: C3H9Si+ + C8H10 = (C3H9Si+ • C8H10)

Quantity Value Units Method Reference Comment
Δr121.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr147.J/mol*KN/AWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
53.1468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H6, Entropy change calculated or estimated; M

C9H12+ + Benzene, 1,3-dimethyl- = (C9H12+ • Benzene, 1,3-dimethyl-)

By formula: C9H12+ + C8H10 = (C9H12+ • C8H10)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr59.8kJ/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr110.J/mol*KN/AMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
26.300.PHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

Chlorine anion + Benzene, 1,3-dimethyl- = (Chlorine anion • Benzene, 1,3-dimethyl-)

By formula: Cl- + C8H10 = (Cl- • C8H10)

Quantity Value Units Method Reference Comment
Δr16.3kJ/molTDEqFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
18.300.PHPMSFrench, Ikuta, et al., 1982gas phase; M

References

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

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

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

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

Caldwell and Bartmess
Caldwell, G.; Bartmess, J.E., , Unpublished results. [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]

Bohon and Claussen, 1951
Bohon, R.L.; Claussen, W.F., The solubility of aromatic hydrocarbons in water, J. Am. Chem. Soc., 1951, 73, 1571-1578. [all data]


Notes

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