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Pyridine, 2-methyl-

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Gas phase 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-6.33kcal/molN/AKosorotov, Zemlyakova, et al., 1978Value computed using «DELTA»fHliquid° value of -69.0 kj/mol from Kosorotov, Zemlyakova, et al., 1978 and «DELTA»vapH° value of 42.5 kj/mol from Scott, Hubbard, et al., 1963.; DRB
Deltafgas23.65 ± 0.21kcal/molCcbScott, Hubbard, et al., 1963ALS
Deltafgas24.36 ± 0.31kcal/molCmAndon, Cox, et al., 1957ALS
Deltafgas24.38 ± 0.31kcal/molCcbCox, Challoner, et al., 1954ALS
Deltafgas21.0kcal/molN/AConstam and White, 1903Value computed using «DELTA»fHliquid° value of 45.3 kj/mol from Constam and White, 1903 and «DELTA»vapH° value of 42.5 kj/mol from Scott, Hubbard, et al., 1963.; DRB

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-16.49kcal/molCcbKosorotov, Zemlyakova, et al., 1978impure compound; ALS
Deltafliquid13.50 ± 0.18kcal/molCcbScott, Hubbard, et al., 1963ALS
Deltafliquid14.10 ± 0.31kcal/molCcbCox, Challoner, et al., 1954ALS
Deltafliquid10.82kcal/molCcbConstam and White, 1903ALS
Quantity Value Units Method Reference Comment
Deltacliquid-786.91kcal/molCcbKosorotov, Zemlyakova, et al., 1978impure compound; ALS
Deltacliquid-816.92 ± 0.16kcal/molCcbScott, Hubbard, et al., 1963ALS
Deltacliquid-817.52 ± 0.31kcal/molCcbCox, Challoner, et al., 1954ALS
Deltacliquid-816.1kcal/molCcbConstam and White, 1903ALS
Quantity Value Units Method Reference Comment
liquid52.070cal/mol*KN/AScott, Hubbard, et al., 1963DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
37.861298.15Scott, Hubbard, et al., 1963T = 12 to 370 K.; DH

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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:
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.

Individual Reactions

C6H6N- + Hydrogen cation = Pyridine, 2-methyl-

By formula: C6H6N- + H+ = C6H7N

Quantity Value Units Method Reference Comment
Deltar376.8 ± 3.1kcal/molG+TSDePuy, Kass, et al., 1988gas phase; Acid: 2-methylpyridine. Between EtOH, iPrOH; B
Quantity Value Units Method Reference Comment
Deltar370.0 ± 3.0kcal/molIMRBDePuy, Kass, et al., 1988gas phase; Acid: 2-methylpyridine. Between EtOH, iPrOH; B

C6H8N+ + Pyridine, 2-methyl- = (C6H8N+ bullet Pyridine, 2-methyl-)

By formula: C6H8N+ + C6H7N = (C6H8N+ bullet C6H7N)

Quantity Value Units Method Reference Comment
Deltar23.0kcal/molPHPMSMeot-Ner M. and Sieck, 1983gas phase; M
Quantity Value Units Method Reference Comment
Deltar27.8cal/mol*KPHPMSMeot-Ner M. and Sieck, 1983gas phase; M

Lithium ion (1+) + Pyridine, 2-methyl- = (Lithium ion (1+) bullet Pyridine, 2-methyl-)

By formula: Li+ + C6H7N = (Li+ bullet C6H7N)

Quantity Value Units Method Reference Comment
Deltar46.4 ± 1.6kcal/molCIDTRodgers, 2001RCD

Sodium ion (1+) + Pyridine, 2-methyl- = (Sodium ion (1+) bullet Pyridine, 2-methyl-)

By formula: Na+ + C6H7N = (Na+ bullet C6H7N)

Quantity Value Units Method Reference Comment
Deltar30.6 ± 1.1kcal/molCIDTRodgers, 2001RCD

Potassium ion (1+) + Pyridine, 2-methyl- = (Potassium ion (1+) bullet Pyridine, 2-methyl-)

By formula: K+ + C6H7N = (K+ bullet C6H7N)

Quantity Value Units Method Reference Comment
Deltar23.4 ± 0.8kcal/molCIDTRodgers, 2001RCD

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

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

Kosorotov, Zemlyakova, et al., 1978
Kosorotov, V.I.; Zemlyakova, Z.F.; Platonov, V.A.; Ovchinnikov, V.G.; Simulin, Yu.N.; Dzhagatspanyan, R.V., Determination of thermal effects of the synthesis of chloropicolines and chloroaminopicolines, J. Appl. Chem. USSR (Engl. Transl.), 1978, 51, 2262-2263, In original 2376. [all data]

Scott, Hubbard, et al., 1963
Scott, D.W.; Hubbard, W.N.; Messerly, J.F.; Todd, S.S.; Hossenlopp, I.A.; Good, W.D.; Douslin, D.R.; McCullough, J.P., Chemical thermodynamic properties and internal rotation of methylpyridines. I. 2-methylpyridine, J. Phys. Chem., 1963, 67, 680-685. [all data]

Andon, Cox, et al., 1957
Andon, R.J.L.; Cox, J.D.; Herington, E.F.G.; Martin, J.F., The second virial coefficients of pyridine and benzene, and certain of their methyl homologues, Trans. Faraday Soc., 1957, 53, 1074. [all data]

Cox, Challoner, et al., 1954
Cox, J.D.; Challoner, A.R.; Meetham, A.R., The heats of combustion of pyridine and certain of its derivatives, J. Chem. Soc., 1954, 265-271. [all data]

Constam and White, 1903
Constam, E.J.; White, J., Physico-chemical investigations in the pyridine series, Am. Chem. J., 1903, 29, 1-49. [all data]

DePuy, Kass, et al., 1988
DePuy, C.H.; Kass, S.R.; Bean, G.P., Formation and Reactions of Heteroaromatic Anions in the Gas Phase, J. Org. Chem., 1988, 53, 19, 4427, https://doi.org/10.1021/jo00254a001 . [all data]

Meot-Ner M. and Sieck, 1983
Meot-Ner M.; Sieck, L.W., The Ionic Hydrogen Bond. 1. Sterically Hindered Bonds. Solvation and Clustering of Sterically Hindered Amines and Pyridines, J. Am. Chem. Soc., 1983, 105, 10, 2956, https://doi.org/10.1021/ja00348a005 . [all data]

Rodgers, 2001
Rodgers, M.T., Substituent Effects in the Binding of Alkali Metal Ions to Pyridines, Studied by Threshold Collision-Induced Dissociation and ab Initio Theory: The Methylpyridines, J. Phys. Chem. A, 2001, 105, 11, 2374, https://doi.org/10.1021/jp004055z . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References