HSS anion
- Formula: HS2-
- Molecular weight: 65.138
- CAS Registry Number: 26693-74-3
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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 by: 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 345.8 ± 3.6 | kcal/mol | D-EA | Entfellner and Boesl, 2009 | gas phase |
ΔrH° | 346.0 ± 3.1 | kcal/mol | G+TS | Ohair, Depuy, et al., 1993 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.8 ± 3.7 | kcal/mol | H-TS | Entfellner and Boesl, 2009 | gas phase |
ΔrG° | 339.0 ± 3.0 | kcal/mol | IMRB | Ohair, Depuy, et al., 1993 | gas phase |
By formula: (HS2- • 4294967295S2) + S2 = HS2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 81.6 ± 3.7 | kcal/mol | N/A | Entfellner and Boesl, 2009 | gas phase |
ΔrH° | 46.7 ± 3.7 | kcal/mol | Ther | Moran and Ellison, 1988 | gas phase |
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 by: John E. Bartmess
Electron affinity of neutral species
EAneutral (eV) | Method | Reference | Comment |
---|---|---|---|
1.916 ± 0.015 | N/A | Entfellner and Boesl, 2009 | |
1.907 ± 0.023 | LPES | Moran and Ellison, 1988 |
Protonation reactions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 345.8 ± 3.6 | kcal/mol | D-EA | Entfellner and Boesl, 2009 | gas phase |
ΔrH° | 346.0 ± 3.1 | kcal/mol | G+TS | Ohair, Depuy, et al., 1993 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 338.8 ± 3.7 | kcal/mol | H-TS | Entfellner and Boesl, 2009 | gas phase |
ΔrG° | 339.0 ± 3.0 | kcal/mol | IMRB | Ohair, Depuy, et al., 1993 | gas phase |
Ion clustering data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: (HS2- • 4294967295S2) + S2 = HS2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 81.6 ± 3.7 | kcal/mol | N/A | Entfellner and Boesl, 2009 | gas phase |
ΔrH° | 46.7 ± 3.7 | kcal/mol | Ther | Moran and Ellison, 1988 | gas phase |
Vibrational and/or electronic energy levels
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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: Marilyn E. Jacox
State: ?
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
Td = 15460 ± 120 | gas | Moran and Ellison, 1988 | |||||
Entfellner and Boesl, 2009, 2 | |||||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 3 | SS stretch | 610 ± 80 | gas | PE | Moran and Ellison, 1988 | |
Additional references: Jacox, 1994, page 53
Notes
d | Photodissociation threshold |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Ohair, Depuy, et al., 1993
Ohair, R.A.J.; Depuy, C.H.; Bierbaum, V.M.,
Gas-Phase Chemistry and Thermochemistry of the Hydroxysulfide Anion, HOS-,
J. Phys. Chem., 1993, 97, 30, 7955, https://doi.org/10.1021/j100132a026
. [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]
Entfellner and Boesl, 2009, 2
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, https://doi.org/10.1039/b820174a
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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