Pyridine, 4-(methylthio)-


Phase change 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: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
55.8361.AStephenson and Malanowski, 1987Based on data from 346. - 383. K.

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
75.3 ± 3.8365.BBeak, Mueller, et al., 1974Based on data from 347. - 383. K.

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 by: 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

4(1H)-Pyridinethione,1-methyl- = Pyridine, 4-(methylthio)-

By formula: C6H7NS = C6H7NS

Quantity Value Units Method Reference Comment
Δr-2. ± 5.0kJ/molCisoBeak, Mueller, et al., 1974liquid phase; solvent: 1,2-Dichloroethane; #LED
Δr-117. ± 16.kJ/molCisoBeak, Mueller, et al., 1974gas phase; Hr gas phase

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:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Quantity Value Units Method Reference Comment
Proton affinity (review)955.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity923.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.00 ± 0.02EIGronneberg and Undheim, 1972LLK
8.73 ± 0.03PECook, El-Abbady, et al., 1977Vertical value; LLK

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.
NIST MS number 2450

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References

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes

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

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Beak, Mueller, et al., 1974
Beak, P.; Mueller, D.S.; Lee, J., Equilibration studies. Determination of the enthalpy difference between methyltropic isomers from heats of methylation, J. Am. Chem. Soc., 1974, 96, 3867-3874. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Gronneberg and Undheim, 1972
Gronneberg, T.; Undheim, K., Mass spectrometry of onium compounds. XI: ionization potentials of hydroxy and mercapto pyridines, Org. Mass Spectrom., 1972, 6, 823. [all data]

Cook, El-Abbady, et al., 1977
Cook, M.J.; El-Abbady, S.; Katritzky, A.R.; Guimon, C.; Pfister-Guillouzo, G., Photoelectron spectra of hydroxy- and mercapto-pyridines and models of fixed structure, J. Chem. Soc. Perkin Trans. 2, 1977, 1652. [all data]


Notes

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