1-Propanethiol, 2-methyl-

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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 by: John E. Bartmess

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Individual Reactions

C4H9S- + Hydrogen cation = 1-Propanethiol, 2-methyl-

By formula: C4H9S- + H+ = C4H10S

Quantity Value Units Method Reference Comment
Δr353.1 ± 2.2kcal/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr346.8 ± 2.0kcal/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale

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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Quantity Value Units Method Reference Comment
Proton affinity (review)191.8kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity184.4kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.12PEOgata, Onizuka, et al., 1973LLK

De-protonation reactions

C4H9S- + Hydrogen cation = 1-Propanethiol, 2-methyl-

By formula: C4H9S- + H+ = C4H10S

Quantity Value Units Method Reference Comment
Δr353.1 ± 2.2kcal/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr346.8 ± 2.0kcal/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale; B

References

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

Taft, 1987
Taft, R.W., The Nature and Analysis of Substitutent Electronic Effects, Personal communication. See also Prog. Phys. Org. Chem., 1987, 16, 1. [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]

Ogata, Onizuka, et al., 1973
Ogata, H.; Onizuka, H.; Nihei, Y.; Kamada, H., The photoelectron spectra of alcohols, mercaptans and amines, Bull. Chem. Soc. Jpn., 1973, 46, 3036. [all data]


Notes

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