Sulfide, allyl methyl


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

C4H7S- + Hydrogen cation = Sulfide, allyl methyl

By formula: C4H7S- + H+ = C4H8S

Quantity Value Units Method Reference Comment
Δr1563. ± 17.kJ/molG+TSDahlke and Kass, 1991gas phase; Between iPrOH, MeCN. Reprotonation site uncertain.; B
Quantity Value Units Method Reference Comment
Δr1536. ± 17.kJ/molIMRBDahlke and Kass, 1991gas phase; Between iPrOH, MeCN. Reprotonation site uncertain.; B

Sulfide, allyl methyl = 1-Propene, 1-(methylthio)-, (E)-

By formula: C4H8S = C4H8S

Quantity Value Units Method Reference Comment
Δr-13.9 ± 0.5kJ/molEqkKimmelma, 1988liquid phase; solvent: DMSO; NMR; 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 compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C4H8S+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.6PESchafer and Schweig, 1972LLK
8.7 ± 0.2EIHobrock and Kiser, 1963RDSH
8.65PEEaton and Traylor, 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHS+13.8 ± 0.3?EIHobrock and Kiser, 1963RDSH
CH2S+11.4 ± 0.3?EIHobrock and Kiser, 1963RDSH
CH3+17.7 ± 0.5?EIHobrock and Kiser, 1963RDSH
CH3S+11.9 ± 0.2?EIHobrock and Kiser, 1963RDSH
CH4S+11.5 ± 0.2?EIHobrock and Kiser, 1963RDSH
C2H3+16.5 ± 0.4?EIHobrock and Kiser, 1963RDSH
C2H5S+12.0 ± 0.2?EIHobrock and Kiser, 1963RDSH
C3H+16.6 ± 0.5?EIHobrock and Kiser, 1963RDSH
C3H2+20.3?EIHobrock and Kiser, 1963RDSH
C3H3+16.5 ± 0.4?EIHobrock and Kiser, 1963RDSH
C3H5+12.7 ± 0.3?EIHobrock and Kiser, 1963RDSH
C3H5S+11.0 ± 0.2CH3EIHobrock and Kiser, 1963RDSH

De-protonation reactions

C4H7S- + Hydrogen cation = Sulfide, allyl methyl

By formula: C4H7S- + H+ = C4H8S

Quantity Value Units Method Reference Comment
Δr1563. ± 17.kJ/molG+TSDahlke and Kass, 1991gas phase; Between iPrOH, MeCN. Reprotonation site uncertain.; B
Quantity Value Units Method Reference Comment
Δr1536. ± 17.kJ/molIMRBDahlke and Kass, 1991gas phase; Between iPrOH, MeCN. Reprotonation site uncertain.; 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.

Dahlke and Kass, 1991
Dahlke, G.D.; Kass, S.R., Substituent Effects in the Gas Phase - 1-Substituted Allyl Anions, J. Am. Chem. Soc., 1991, 113, 15, 5566, https://doi.org/10.1021/ja00015a008 . [all data]

Kimmelma, 1988
Kimmelma, R., Structure-stability relationships in vinyl sulfides. III. Stabilization caused by different alkylthio and phenylthio groups attached to an olefinic double bond, Acta Chem. Scand., 1988, 42, 550-555. [all data]

Schafer and Schweig, 1972
Schafer, W.; Schweig, A., Evidence against the significance of C-S hyperconjugation in determining the conformation of allyl methyl sulphide, J. Chem. Soc., Chem. Commun., 1972, 824. [all data]

Hobrock and Kiser, 1963
Hobrock, B.G.; Kiser, R.W., Electron impact investigations of sulfur compounds. II. 3-Methyl-2-thiabutane, 4-thia-1-pentene, and 3,4-dithiahexane, J. Phys. Chem., 1963, 67, 648. [all data]

Eaton and Traylor, 1974
Eaton, D.F.; Traylor, T.G., Distortional stabilization in phenyl participations, J. Am. Chem. Soc., 1974, 96, 7109. [all data]


Notes

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