HS2
- Formula: HS2
- Molecular weight: 65.138
- CAS Registry Number: 14541-24-3
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Reaction thermochemistry data
Go To: Top, 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. 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- + = HS2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1380. ± 15. | kJ/mol | D-EA | Moran and Ellison, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | >1441.8 | kJ/mol | IMRB | Goodings, Bohme, et al., 1986 | gas phase; S- deprotonates H2S, Sn- for n≥2, does not. |
Vibrational and/or electronic energy levels
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: Marilyn E. Jacox
State: B?
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| gas | 307 | 380 | Porter, 1950 | ||||
| Strausz, Donovan, et al., 1968 | |||||||
| Gosavi, deSorgo, et al., 1973 | |||||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a' | 1 | SH stretch | 2500 | T | gas | AB | Gosavi, deSorgo, et al., 1973 |
| 2 | Bend | 900 | T | gas | AB | Gosavi, deSorgo, et al., 1973 | |
| 3 | SS stretch | 600 | T | gas | AB | Gosavi, deSorgo, et al., 1973 | |
State: A
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 7254.04 | gas | A-X | 950 | 2100 | Holstein, Fink, et al., 1985 | ||
| Ashworth and Fink, 2007 | |||||||
| Entfellner and Boesl, 2009 | |||||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a' | 1 | SH stretch | 2550 ± 200 | gas | PE | Entfellner and Boesl, 2009 | |
| 2 | Bend | 808 ± 10 | gas | CL | Ashworth and Fink, 2007 | ||
| 3 | SS stretch | 504.53 | gas | CL | Holstein, Fink, et al., 1985 Ashworth and Fink, 2007 | ||
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a' | 1 | SH stretch | 2688 ± 10 | gas | CL | Ashworth and Fink, 2007 | |
| 1 | SH stretch | 2463 | T | Ar | IR | Isoniemi, Khriachtchev, et al., 1999 | |
| 1 | SH stretch | 2460 | T | Ar | IR | Isoniemi, Khriachtchev, et al., 1999 | |
| 2 | Bend | 892 ± 10 | gas | CL | Holstein, Fink, et al., 1985 Ashworth and Fink, 2007 | ||
| 2 | Bend | 903 | T | Ar | IR | Isoniemi, Khriachtchev, et al., 1999 | |
| 3 | SS stretch | 596.28 | gas | CL | Holstein, Fink, et al., 1985 Ashworth and Fink, 2007 | ||
Additional references: Jacox, 1994, page 50; Jacox, 1998, page 154; Jacox, 2003, page 44; Yamamoto and Saito, 1994; Ashworth, Evenson, et al., 1995; Tanimoto, Klaus, et al., 2000
Notes
| T | Tentative assignment or approximate value |
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Reaction thermochemistry 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.
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]
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]
Porter, 1950
Porter, G.,
The absorption spectroscopy of substances of short life,
Discuss. Faraday Soc., 1950, 9, 60, https://doi.org/10.1039/df9500900060
. [all data]
Strausz, Donovan, et al., 1968
Strausz, O.P.; Donovan, R.J.; deSorgo, M.,
Ber. Bunsenges. Phys. Chem., 1968, 72, 253. [all data]
Gosavi, deSorgo, et al., 1973
Gosavi, R.K.; deSorgo, M.; Gunning, H.E.; Strausz, O.P.,
The UV absorption spectrum and geometry of the HS2 radical,
Chem. Phys. Lett., 1973, 21, 2, 318, https://doi.org/10.1016/0009-2614(73)80145-9
. [all data]
Holstein, Fink, et al., 1985
Holstein, K.J.; Fink, E.H.; Wildt, J.; Zabel, F.,
Ã2A´ » X2A´' emission spectrum of the HS2 radical,
Chem. Phys. Lett., 1985, 113, 1, 1, https://doi.org/10.1016/0009-2614(85)85001-6
. [all data]
Ashworth and Fink, 2007
Ashworth, S.H.; Fink, E.H.,
The high resolution Fourier-transform chemiluminescence spectrum of the HS,
Mol. Phys., 2007, 105, 5-7, 715, https://doi.org/10.1080/00268970601146880
. [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, https://doi.org/10.1039/b820174a
. [all data]
Isoniemi, Khriachtchev, et al., 1999
Isoniemi, E.; Khriachtchev, L.; Pettersson, M.; Rasanen, M.,
Infrared spectroscopy and 266 nm photolysis of H2S2 in solid Ar,
Chem. Phys. Lett., 1999, 311, 1-2, 47, https://doi.org/10.1016/S0009-2614(99)00756-3
. [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]
Jacox, 1998
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement A,
J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017
. [all data]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Yamamoto and Saito, 1994
Yamamoto, S.; Saito, S.,
Microwave spectrum and molecular structure of the HS,
Can. J. Phys., 1994, 72, 11-12, 954, https://doi.org/10.1139/p94-125
. [all data]
Ashworth, Evenson, et al., 1995
Ashworth, S.H.; Evenson, K.M.; Brown, J.M.,
Identification and Analysis of the Far-Infrared Laser Magnetic Resonance Spectrum of the HS2 Radical,
J. Mol. Spectrosc., 1995, 172, 1, 282, https://doi.org/10.1006/jmsp.1995.1176
. [all data]
Tanimoto, Klaus, et al., 2000
Tanimoto, M.; Klaus, T.; Muller, H.S.P.; Winnewisser, G.,
Rotational Spectra of the Thiosulfeno Radical, HSS and DSS, between 0.3 and 0.9 THz,
J. Mol. Spectrosc., 2000, 199, 1, 73, https://doi.org/10.1006/jmsp.1999.7990
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
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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