Disulfide, dimethyl

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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
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to C2H6S2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)7.4 ± 0.1eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)815.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity782.8kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Δf(+) ion690. ± 15.kJ/molN/AN/A 
Quantity Value Units Method Reference Comment
ΔfH(+) ion,0K707. ± 15.kJ/molN/AN/A 

Electron affinity determinations

EA (eV) Method Reference Comment
1.75LPESCarles, Lecomte, et al., 2001EA is Vertical Detachment Energy. Adiabtic EA estimated as bound, but only by ca 0.1 eV; B
0.23 ± 0.21IMRBRinden, Maricq, et al., 1989EA: between NO, O2.; B

Ionization energy determinations

IE (eV) Method Reference Comment
8.2 ± 0.2IMBLeeck and Kenttamaa, 1994LL
8.18 ± 0.03PILi, Chiu, et al., 1993LL
7.4 ± 0.3EVALButler, Baer, et al., 1983LBLHLM
8.33 ± 0.02PIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
8.3PEColton and Rabalais, 1974LLK
8.71 ± 0.03PECullen, Frost, et al., 1969RDSH
8.46 ± 0.03PIWatanabe, Nakayama, et al., 1962RDSH
8.97PEChang, Young, et al., 1986Vertical value; LBLHLM
8.96PEKimura, Katsumata, et al., 1981Vertical value; LLK
8.97PEKobayashi, 1978Vertical value; LLK
8.96PEKimura and Osafune, 1975Vertical value; LLK
9.PEGuimon, Guimon, et al., 1975Vertical value; LLK
8.97PEWagner and Bock, 1974Vertical value; LLK
8.98PEBaker, Brisk, et al., 1974Vertical value; LLK
8.82PEKroto and Suffolk, 1972Vertical value; LLK
8.97PEBock, Wagner, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHS+13.43 ± 0.09?EICullen, Frost, et al., 1970RDSH
CH2S+10.61 ± 0.11?EICullen, Frost, et al., 1970RDSH
CH3+12.9?EICullen, Frost, et al., 1970RDSH
CH3S+10.4 ± 0.1CH3SPIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
CH3S+11.1 ± 0.1?EIPalmer and Lossing, 1962RDSH
CH3S2+10.15 ± 0.10CH3PIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
CH3S2+11.45CH3EIGowenlock, Kay, et al., 1963RDSH
CH3S2+[CH2SSH+]11.07CH3PIMa, Liao, et al., 1994LL
CH3SH+10.4 ± 0.1CH2SPIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
CH4S+9.72 ± 0.09?EICullen, Frost, et al., 1970RDSH
CH3SH2+10.5 ± 0.1CHSPIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
CH5S+11.44 ± 0.15?EICullen, Frost, et al., 1970RDSH
CS+12.0 ± 0.3H2S+CH4EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H2S+10.15 ± 0.08CH3SHPIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
C2H3+14.6 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H4+15.6 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
C2H5S+10.08 ± 0.08SHPIPECOButler, Baer, et al., 1983T = 298K; LBLHLM
C2H5S+10.0?EIAmos, Gillis, et al., 1969RDSH
S+15.0 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
S2+15.01 ± 0.13?EICullen, Frost, et al., 1970RDSH
S2+15.9 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969RDSH
S2+15.4 ± 0.3?EIHobrock and Kiser, 1962RDSH


Go To: Top, 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.

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]

Carles, Lecomte, et al., 2001
Carles, S.; Lecomte, F.; Schermann, J.P.; Desfrancois, C.; Xu, S.; Nilles, J.M.; Bowen, K.H.; Berges, J.; Houe, Nondissociative electron capture by disulfide bonds, J. Phys. Chem. A, 2001, 105, 23, 5622-5626, https://doi.org/10.1021/jp0040603 . [all data]

Rinden, Maricq, et al., 1989
Rinden, E.; Maricq, M.M.; Grabowski, J.J., Gas-Phase Ion-Molecule Reactions of the Nitric Oxide Anion, J. Am. Chem. Soc., 1989, 111, 4, 1203, https://doi.org/10.1021/ja00186a006 . [all data]

Leeck and Kenttamaa, 1994
Leeck, D.T.; Kenttamaa, H.I., Heat of formation of the radical cation of dimethyl disulfide, Org. Mass Spectrom., 1994, 29, 106. [all data]

Li, Chiu, et al., 1993
Li, W.-K.; Chiu, S.-W.; Ma, Z.-X.; Liao, C.L.; Ng, C.Y., Adiabatic ionization energy of CH3SSCH3, J. Chem. Phys., 1993, 99, 8440. [all data]

Butler, Baer, et al., 1983
Butler, J.J.; Baer, T.; Evans, S.A., Jr., Energetics and structures of organosulfur ions: CH3SSCH3+, CH3SS+, C2H5S+, and CH2SH+, J. Am. Chem. Soc., 1983, 105, 3451. [all data]

Colton and Rabalais, 1974
Colton, R.J.; Rabalais, J.W., Photoelectron electronic absorption spectra of SCl2, S2Cl2, S2Br2 and (CH3)2S2, J. Electron Spectrosc. Relat. Phenom., 1974, 3, 345. [all data]

Cullen, Frost, et al., 1969
Cullen, W.R.; Frost, D.C.; Vroom, D.A., Ionization potentials of some sulfur compounds, Inorg. Chem., 1969, 8, 1803. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Chang, Young, et al., 1986
Chang, F.C.; Young, V.Y.; Prather, J.W.; Cheng, K.L., Study of methyl chalcogen compounds with ultraviolet photoelectron spectroscopy, J. Electron Spectrosc. Relat. Phenom., 1986, 40, 363. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Kobayashi, 1978
Kobayashi, T., A new rule for photoelectron angular distributions of molecules, Phys. Lett. A, 1978, 69, 31. [all data]

Kimura and Osafune, 1975
Kimura, K.; Osafune, K., Photoelectron spectroscopic study of skew compounds. III. N,N'-dimethylhydrazine, dimethyl peroxide, and dimethyl disulfide, Bull. Chem. Soc. Jpn., 1975, 48, 2421. [all data]

Guimon, Guimon, et al., 1975
Guimon, M.-F.; Guimon, C.; Pfister-Guillouzo, G., Application of photoelectron spectroscopy to conformational analysis of 1,2,4-trithiolanes, Tetrahedron Lett., 1975, 7, 441. [all data]

Wagner and Bock, 1974
Wagner, G.; Bock, H., Photoelektronenspektren und molekuleigenschaften, XXVI. Die delokalisation von schwefel-elektronenpaaren in alkylsulfiden und -disulfiden, Chem. Ber., 1974, 107, 68. [all data]

Baker, Brisk, et al., 1974
Baker, A.D.; Brisk, M.; Gellender, M., Photoelectron spectra and dihedral angles of disulfides, J. Electron Spectrosc. Relat. Phenom., 1974, 3, 227. [all data]

Kroto and Suffolk, 1972
Kroto, H.W.; Suffolk, R.J., The photoelectron spectrum of an unstable species in the pyrolysis products of dimethyldisulphide, Chem. Phys. Lett., 1972, 15, 545. [all data]

Bock, Wagner, et al., 1972
Bock, H.; Wagner, G.; Kroner, J., Photoelektronenspektren und molekuleigenschaften, XIV. Die delokalisation des schwefel-elektronenpaar in CH3S-substituierten aromaten, Chem. Ber., 1972, 105, 3850. [all data]

Cullen, Frost, et al., 1970
Cullen, W.R.; Frost, D.C.; Pun, M.T., Mass spectra, appearance potentials, heats of formation, and bond energies of some alkyl and perfluoroalkyl sulfides, Inorg. Chem., 1970, 9, 1976. [all data]

Palmer and Lossing, 1962
Palmer, T.F.; Lossing, F.P., Free radicals by mass spectrometry. XXVIII. The HS, CH3S, and phenyl-S radicals: ionization potentials and heats of formation, J. Am. Chem. Soc., 1962, 84, 4661. [all data]

Gowenlock, Kay, et al., 1963
Gowenlock, B.G.; Kay, J.; Majer, J.R., Electron impact studies of some sulphides and disulphides, J. Chem. Soc. Faraday Trans., 1963, 59, 2463. [all data]

Ma, Liao, et al., 1994
Ma, Z.-X.; Liao, C.L.; Ng, C.Y.; Cheung, Y.-S.; Li, W.-K.; Baer, T., Experimental and theoretical studies of isomeric CH3S2 and CH3S2+, J. Chem. Phys., 1994, 100, 4870. [all data]

Gal'perin, Bogolyubov, et al., 1969
Gal'perin, Ya.V.; Bogolyubov, G.M.; Grishin, N.N.; Petrov, A.A., Organic derivatives of elements of groups V and VI. VI. Mass spectra of compounds with S-S bonds, Zh. Obshch. Khim., 1969, 39, 1599, In original 1567. [all data]

Amos, Gillis, et al., 1969
Amos, D.; Gillis, R.G.; Occolowitz, J.L.; Pisani, J.F., The ions [CH3S]+, [C2H5S]+ and [CH3O]+ formed by electron-impact, Org. Mass Spectrom., 1969, 2, 209. [all data]

Hobrock and Kiser, 1962
Hobrock, B.G.; Kiser, R.W., Electron impact spectroscopy of sulfur compounds. I. 2-Thiabutane, 2-thiapentane, and 2,3-dithiabutane, J. Phys. Chem., 1962, 66, 1648. [all data]


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