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Sulfur dimer

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Gas phase 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.

Quantity Value Units Method Reference Comment
Deltafgas30.736 ± 0.072kcal/molReviewCox, Wagman, et al., 1984CODATA Review value
Deltafgas30.736kcal/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
gas,1 bar54.5332 ± 0.0024cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar54.539cal/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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 6000.
A 8.009831
B 1.210651
C -0.253267
D 0.021488
E -0.050648
F 28.12751
G 63.59749
H 30.73621
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- bullet 4294967295Sulfur dimer) + Sulfur dimer = HS2-

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

Quantity Value Units Method Reference Comment
Deltar81.6 ± 3.7kcal/molN/AEntfellner and Boesl, 2009gas phase; B
Deltar46.7 ± 3.7kcal/molTherMoran and Ellison, 1988gas phase; B

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

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

Quantity Value Units Method Reference Comment
Deltar113.29 ± 0.39kcal/molN/ANimlos and Ellison, 1986gas phase; B

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

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

Quantity Value Units Method Reference Comment
Deltar68.4 ± 4.4kcal/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

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

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

Quantity Value Units Method Reference Comment
Deltar71.6 ± 3.0kcal/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

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

By formula: V+ + S2 = (V+ bullet S2)

Quantity Value Units Method Reference Comment
Deltar74.8 ± 3.2kcal/molCIDTSchroeder, Kretzschmar, et al., 2003RCD

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

By formula: Mo+ + S2 = (Mo+ bullet S2)

Quantity Value Units Method Reference Comment
Deltar78.7 ± 2.5kcal/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