Sulfur dimer

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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.

Quantity Value Units Method Reference Comment
Δfgas128.60 ± 0.30kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfgas128.60kJ/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
gas,1 bar228.167 ± 0.010J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar228.19J/mol*KReviewChase, 1998Data last reviewed in September, 1977

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 6000.
A 33.51313
B 5.065360
C -1.059670
D 0.089905
E -0.211911
F 117.6855
G 266.0919
H 128.6003
ReferenceChase, 1998
Comment Data last reviewed in September, 1977

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:
B - John E. Bartmess
RCD - Robert C. Dunbar

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

(HS2- • 4294967295Sulfur dimer) + Sulfur dimer = HS2-

By formula: (HS2- • 4294967295S2) + S2 = HS2-

Quantity Value Units Method Reference Comment
Δr341. ± 15.kJ/molN/AEntfellner and Boesl, 2009gas phase; B
Δr195. ± 15.kJ/molTherMoran and Ellison, 1988gas phase; B

(OS2- • 4294967295Sulfur dimer) + Sulfur dimer = OS2-

By formula: (OS2- • 4294967295S2) + S2 = OS2-

Quantity Value Units Method Reference Comment
Δr474.0 ± 1.6kJ/molN/ANimlos and Ellison, 1986gas phase; B

(Vanadium ion (1+) • Sulfur dimer) + Sulfur dimer = (Vanadium ion (1+) • 2Sulfur dimer)

By formula: (V+ • S2) + S2 = (V+ • 2S2)

Quantity Value Units Method Reference Comment
Δr286. ± 18.kJ/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

(Molybdenum ion (1+) • Sulfur dimer) + Sulfur dimer = (Molybdenum ion (1+) • 2Sulfur dimer)

By formula: (Mo+ • S2) + S2 = (Mo+ • 2S2)

Quantity Value Units Method Reference Comment
Δr300. ± 13.kJ/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

Vanadium ion (1+) + Sulfur dimer = (Vanadium ion (1+) • Sulfur dimer)

By formula: V+ + S2 = (V+ • S2)

Quantity Value Units Method Reference Comment
Δr313. ± 13.kJ/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

Molybdenum ion (1+) + Sulfur dimer = (Molybdenum ion (1+) • Sulfur dimer)

By formula: Mo+ + S2 = (Mo+ • S2)

Quantity Value Units Method Reference Comment
Δr329. ± 10.kJ/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

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.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Entfellner and Boesl, 2009
Entfellner, M.; Boesl, U., Photodetachment-photoelectron spectroscopy of disulfanide: the ground and first excited electronic state of HS2 and DS2, Phys. Chem. Chem. Phys., 2009, 11, 15, 2657-2662, https://doi.org/10.1039/b820174a . [all data]

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]

Nimlos and Ellison, 1986
Nimlos, M.R.; Ellison, G.B., Photoelectron spectroscopy of SO2-, S3-, and S2O-, J. Phys. Chem., 1986, 90, 2574. [all data]

Schroeder, Kretzschmar, et al., 2003
Schroeder, D.; Kretzschmar, I.; Schwarz; Armentrout, P.B., Structure, Thermochemistry, and Reactivityof MSn+ Cations (M=V,Mo; n=1-3) in the Gas Phase, Int. J. Mass Spectrom., 2003, 228, 2-3, 439, https://doi.org/10.1016/S1387-3806(03)00137-4 . [all data]


Notes

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