Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

S2 anion


Gas phase thermochemistry data

Go To: Top, 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 by: John E. Bartmess

Quantity Value Units Method Reference Comment
Deltafgas-33. ± 22.kJ/molAcidMoran and Ellison, 1988 
Deltafgas<46.0 ± 9.6kJ/molIMRBDillard and Franklin, 1968S- + COS -> S2- + CO. Also S2- + COS -> S3- + CO, etc. to n=6

Reaction thermochemistry data

Go To: Top, Gas 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

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

(S2- bullet Carbon disulfide) + Carbon disulfide = (S2- bullet 2Carbon disulfide)

By formula: (S2- bullet CS2) + CS2 = (S2- bullet 2CS2)

Quantity Value Units Method Reference Comment
Deltar26.kJ/molPHPMSHiraoka, Fujimaki, et al., 1994gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar84.J/mol*KN/AHiraoka, Fujimaki, et al., 1994gas phase; Entropy change calculated or estimated; M

S2- + Hydrogen cation = HS2

By formula: S2- + H+ = HS2

Quantity Value Units Method Reference Comment
Deltar1380. ± 15.kJ/molD-EAMoran and Ellison, 1988gas phase; B
Quantity Value Units Method Reference Comment
Deltar>1441.8kJ/molIMRBGoodings, Bohme, et al., 1986gas phase; S- deprotonates H2S, Sn- for n>=2, does not.; B

S2- + Carbon disulfide = (S2- bullet Carbon disulfide)

By formula: S2- + CS2 = (S2- bullet CS2)

Quantity Value Units Method Reference Comment
Deltar79.9kJ/molPHPMSHiraoka, Fujimaki, et al., 1994gas phase; M
Quantity Value Units Method Reference Comment
Deltar120.J/mol*KPHPMSHiraoka, Fujimaki, et al., 1994gas phase; M

(S2- bullet 4294967295sulfur) + sulfur = S2-

By formula: (S2- bullet 4294967295S) + S = S2-

Quantity Value Units Method Reference Comment
Deltar388. ± 22.kJ/molN/AMoran and Ellison, 1988gas phase; B

S2- = CS4-

By formula: S2- = CS4-

Quantity Value Units Method Reference Comment
Deltar79.9 ± 6.3kJ/molTDAsHiraoka, Fujimaki, et al., 1994, 2gas phase; B

References

Go To: Top, Gas 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.

Moran and Ellison, 1988
Moran, S.; Ellison, G.B., Photoelectron Spectroscopy of Sulfur Ions, J. Phys. Chem., 1988, 92, 7, 1794, https://doi.org/10.1021/j100318a021 . [all data]

Dillard and Franklin, 1968
Dillard, J.G.; Franklin, J.L., Ion-Molecule Reactions of Negative Ions. I. Negative Ions of Sulfur, J. Chem. Phys., 1968, 48, 5, 2349, https://doi.org/10.1063/1.1669435 . [all data]

Hiraoka, Fujimaki, et al., 1994
Hiraoka, K.; Fujimaki, S.; Aruga, K.; Yamabe, S., Frontier-Controlled Structures of the Gas-Phase A+-(CS2)n Clusters ,A+- = S2+, CS2+, S2-, and CS2-, J. Phys. Chem., 1994, 98, 7, 1802, https://doi.org/10.1021/j100058a014 . [all data]

Goodings, Bohme, et al., 1986
Goodings, J.M.; Bohme, D.K.; Elguindi, K.; Fox, A., Sulphur Anion Chemistry in Hydrocarbon Flames with H2S, OCS, and SO2 Additives, Can. J. Chem., 1986, 64, 4, 689, https://doi.org/10.1139/v86-110 . [all data]

Hiraoka, Fujimaki, et al., 1994, 2
Hiraoka, K.; Fujimaki, S.; Aruga, K., Frontier-controlled Structures of the Gas Phas Clusters A+/-(CS2)n, A+/- = S2+, CS2+, S2-, and CS2-, J. Phys. Chem. (1994), 1994, 98, 7, 1802-1809, https://doi.org/10.1021/j100058a014 . [all data]


Notes

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