Disulfur monoxide
- Formula: OS2
- Molecular weight: 80.129
- IUPAC Standard InChIKey: TXKMVPPZCYKFAC-UHFFFAOYSA-N
- CAS Registry Number: 20901-21-7
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, 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.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -13.50 | kcal/mol | Review | Chase, 1998 | Data last reviewed in September, 1965 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 63.788 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1965 |
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. to 6000. |
---|---|
A | 12.60729 |
B | 1.093801 |
C | -0.294529 |
D | 0.025071 |
E | -0.225374 |
F | -18.06855 |
G | 77.46439 |
H | -13.50000 |
Reference | Chase, 1998 |
Comment | Data last reviewed in September, 1965 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.584 ± 0.005 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.8770 ± 0.0080 | LPES | Nimlos and Ellison, 1986 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.584 ± 0.005 | PIPECO | Norwood and Ng, 1989 | LL |
10.58 ± 0.01 | PI | Berkowitz, Eland, et al., 1977 | LLK |
10.53 ± 0.02 | PE | Frost, Lee, et al., 1973 | LLK |
10.52 | PE | Bock, Solouki, et al., 1973 | LLK |
10.62 | PE | McDowell, 1972 | LLK |
10.3 ± 0.1 | EI | Hagemann, 1962 | RDSH |
10.52 | PE | Rosmus, Dacre, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
OS+ | 13.745 ± 0.006 | S | PI | Berkowitz, Eland, et al., 1977 | LLK |
SO+ | 14.5 ± 0.2 | S | EI | Hagemann, 1962 | RDSH |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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: C
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 29687.72 | gas | C-X | 250 | 395 | Jones, 1950 | ||
Lakshminarayana, 1975 | |||||||
Hallin, Merer, et al., 1977 | |||||||
Chiu, Sung, et al., 1982 | |||||||
Tsukiyama, Kobayashi, et al., 1984 | |||||||
Clouthier and Rutherford, 1988 | |||||||
Zhang, Dupre, et al., 1995 | |||||||
Muller, Vaccaro, et al., 1999 | |||||||
To = 29285 ± 20 | Xe | C-X | 280 | 342 | Phillips, Smith, et al., 1969 | ||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 1 | SO stretch | 1033.9 ± 0.6 | gas | AB LF | Hallin, Merer, et al., 1977 Tsukiyama, Kobayashi, et al., 1984 Clouthier and Rutherford, 1988 Muller, Vaccaro, et al., 1999 | |
2 | Bend | 253.8 ± 0.6 | gas | AB LF | Hallin, Merer, et al., 1977 Tsukiyama, Kobayashi, et al., 1984 Clouthier and Rutherford, 1988 Muller, Vaccaro, et al., 1999 | ||
3 | SS stretch | 410.6 | gas | AB LF | Lakshminarayana, 1975 Hallin, Merer, et al., 1977 Tsukiyama, Kobayashi, et al., 1984 Clouthier and Rutherford, 1988 Zhang, Dupre, et al., 1995 Muller, Vaccaro, et al., 1999 | ||
3 | SS stretch | 415 ± 20 | Xe | AB | Phillips, Smith, et al., 1969 | ||
State: a
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 13943 | gas | a-X | 430 | 670 | Dixon, Haner, et al., 1977 | ||
Tsukiyama, Kobayashi, et al., 1984 | |||||||
Clouthier, 1987 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 1 | SO stretch | 1089 | gas | AB | Dixon, Haner, et al., 1977 Clouthier, 1987 | |
2 | Bend | 332 | gas | AB | Dixon, Haner, et al., 1977 Clouthier, 1987 | ||
3 | SS stretch | 505 | gas | AB | Dixon, Haner, et al., 1977 Clouthier, 1987 | ||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 1 | SO stretch | 1166.45 | gas | DL LF | Jones, 1950 Blukis and Myers, 1965 Lindemayer and Jones, 1985 Muller, Vaccaro, et al., 1999 | |
1 | SO stretch | 1157.6 | Ar | IR Ra | Hopkins, Daly, et al., 1975 Tang and Brown, 1975 Lo, Wu, et al., 2002 | ||
1 | SO stretch | 1155.0 | N2 | IR | Lo, Wu, et al., 2002 | ||
2 | Bend | 380 | gas | LF | Clouthier and Rutherford, 1988 Muller, Vaccaro, et al., 1999 | ||
2 | Bend | 370 ± 30 | gas | MW | Meschi and Myers, 1959 | ||
2 | Bend | 382 | Ar | IR Ra | Hopkins, Daly, et al., 1975 Tang and Brown, 1975 | ||
3 | SS stretch | 679.1 | gas | IR LF | Jones, 1950 Blukis and Myers, 1965 Tsukiyama, Kobayashi, et al., 1984 Muller, Vaccaro, et al., 1999 | ||
3 | SS stretch | 672.5 | Ar | IR Ra | Hopkins, Daly, et al., 1975 Tang and Brown, 1975 Lo, Wu, et al., 2002 | ||
3 | SS stretch | 675.1 | N2 | IR | Lo, Wu, et al., 2002 | ||
Additional references: Jacox, 1994, page 105; Jacox, 1998, page 199; Jacox, 2003, page 143; Cook, Winnewisser, et al., 1973; Tiemann, Hoeft, et al., 1974; Thorwirth, Theule, et al., 2006
Notes
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]
Norwood and Ng, 1989
Norwood, K.; Ng, C.Y.,
Photoion-photoelectron coincidence spectroscopy of the transient molecules SO and S2O,
Chem. Phys. Lett., 1989, 156, 145. [all data]
Berkowitz, Eland, et al., 1977
Berkowitz, J.; Eland, J.H.D.; Appelman, E.H.,
Photoionization mass spectrometry and heat of formation of S2O,
J. Chem. Phys., 1977, 66, 2183. [all data]
Frost, Lee, et al., 1973
Frost, D.C.; Lee, S.T.; McDowell, C.A.,
The HeI photoelectron spectrum of S2O,
Chem. Phys. Lett., 1973, 22, 243. [all data]
Bock, Solouki, et al., 1973
Bock, H.; Solouki, B.; Rosmus, P.; Steudel, R.,
Photoelectron spectra and molecular properties: SSO and OSO,
Angew. Chem. Int. Ed. Engl., 1973, 12, 933. [all data]
McDowell, 1972
McDowell, C.A.,
General disscussion,
Faraday Discuss. Chem. Soc., 1972, 54, 68. [all data]
Hagemann, 1962
Hagemann, R.,
Determination de la chaleur de formation de S2O par spectrometrie de masse,
Compt. Rend., 1962, 255, 1102. [all data]
Rosmus, Dacre, et al., 1974
Rosmus, P.; Dacre, P.D.; Solouki, B.; Bock, H.,
Hartree-Fock calculations photoelectron spectra of SSO NSF,
Theor. Chim. Acta, 1974, 35, 129. [all data]
Jones, 1950
Jones, A.V.,
Infra-Red and Ultraviolet Spectra of Sulphur Monoxide,
J. Chem. Phys., 1950, 18, 9, 1263, https://doi.org/10.1063/1.1747922
. [all data]
Lakshminarayana, 1975
Lakshminarayana, G.,
Ultraviolet band systems of S2O,
J. Mol. Spectrosc., 1975, 55, 1-3, 141, https://doi.org/10.1016/0022-2852(75)90259-3
. [all data]
Hallin, Merer, et al., 1977
Hallin, K.-E.J.; Merer, A.J.; Milton, D.J.,
Rotational analysis of bands of the 3400 Å system of disulphur monoxide (S,
Can. J. Phys., 1977, 55, 21, 1858, https://doi.org/10.1139/p77-226
. [all data]
Chiu, Sung, et al., 1982
Chiu, C.L.; Sung, P.C.; Chen, L.D.,
Excitation and fluorescence spectra of disulfur monoxide,
J. Mol. Spectrosc., 1982, 94, 2, 343, https://doi.org/10.1016/0022-2852(82)90010-8
. [all data]
Tsukiyama, Kobayashi, et al., 1984
Tsukiyama, K.; Kobayashi, D.; Obi, K.; Tanaka, I.,
The ultraviolet bands of S2O studied by LIF and optical-optical double-resonance spectroscopy,
Chem. Phys., 1984, 84, 3, 337, https://doi.org/10.1016/0301-0104(84)85183-6
. [all data]
Clouthier and Rutherford, 1988
Clouthier, D.J.; Rutherford, M.L.,
Supersonic jet spectroscopy of S2O,
Chem. Phys., 1988, 127, 1-3, 189, https://doi.org/10.1016/0301-0104(88)87117-9
. [all data]
Zhang, Dupre, et al., 1995
Zhang, Q.; Dupre, P.; Grzybowski, B.; Vaccaro, P.H.,
Laser-induced fluorescence studies of jet-cooled S2O: Axis-switching and predissociation effects,
J. Chem. Phys., 1995, 103, 1, 67, https://doi.org/10.1063/1.469623
. [all data]
Muller, Vaccaro, et al., 1999
Muller, T.; Vaccaro, P.H.; Perez-Bernal, F.; Iachello, F.,
The vibronically-resolved emission spectrum of disulfur monoxide (S[sub 2]O): An algebraic calculation and quantitative interpretation of Franck--Condon transition intensities,
J. Chem. Phys., 1999, 111, 11, 5038, https://doi.org/10.1063/1.479786
. [all data]
Phillips, Smith, et al., 1969
Phillips, L.F.; Smith, J.J.; Meyer, B.,
The ultraviolet spectra of matrix isolated disulfur monoxide and sulfur dioxide,
J. Mol. Spectrosc., 1969, 29, 1-3, 230, https://doi.org/10.1016/0022-2852(69)90102-7
. [all data]
Dixon, Haner, et al., 1977
Dixon, R.N.; Haner, D.A.; Webster, C.R.,
Optoacoustic spectroscopy with a tunable cw dye laser: forbidden transitions in some unstable sulphur compounds,
Chem. Phys., 1977, 22, 2, 199, https://doi.org/10.1016/0301-0104(77)87003-1
. [all data]
Clouthier, 1987
Clouthier, D.J.,
The visible absorption spectrum of S2O,
J. Mol. Spectrosc., 1987, 124, 1, 179, https://doi.org/10.1016/0022-2852(87)90131-7
. [all data]
Blukis and Myers, 1965
Blukis, U.; Myers, R.J.,
Disulfur Monoxide. III. Its Infrared Spectrum and Thermodynamic Functions,
J. Phys. Chem., 1965, 69, 4, 1154, https://doi.org/10.1021/j100888a011
. [all data]
Lindemayer and Jones, 1985
Lindemayer, J.; Jones, H.,
The diode-laser spectrum of the ν1 band of disulfur monoxide,
J. Mol. Spectrosc., 1985, 112, 1, 71, https://doi.org/10.1016/0022-2852(85)90192-4
. [all data]
Hopkins, Daly, et al., 1975
Hopkins, A.G.; Daly, F.P.; Brown, C.W.,
Infrared spectra of matrix isolated disulfur monoxide isotopes,
J. Phys. Chem., 1975, 79, 17, 1849, https://doi.org/10.1021/j100584a018
. [all data]
Tang and Brown, 1975
Tang, S.-Y.; Brown, C.W.,
Raman spectrum of matrix-isolated disulfur monoxide. Evidence for the formation of trisulfur and sulfurdioxide from disulfur monoxide,
Inorg. Chem., 1975, 14, 11, 2856, https://doi.org/10.1021/ic50153a055
. [all data]
Lo, Wu, et al., 2002
Lo, W.-J.; Wu, Y.-J.; Lee, Y.-P.,
Isomers of S[sub 2]O: Infrared absorption spectra of cyclic S[sub 2]O in solid Ar,
J. Chem. Phys., 2002, 117, 14, 6655, https://doi.org/10.1063/1.1506155
. [all data]
Meschi and Myers, 1959
Meschi, D.J.; Myers, R.J.,
The microwave spectrum, structure, and dipole moment of disulfur monoxide,
J. Mol. Spectrosc., 1959, 3, 1-6, 405, https://doi.org/10.1016/0022-2852(59)90036-0
. [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]
Cook, Winnewisser, et al., 1973
Cook, R.L.; Winnewisser, G.; Lindsey, D.C.,
The centrifugal distortion constants of disulfur monoxide,
J. Mol. Spectrosc., 1973, 46, 2, 276, https://doi.org/10.1016/0022-2852(73)90042-8
. [all data]
Tiemann, Hoeft, et al., 1974
Tiemann, E.; Hoeft, J.; Lovas, F.J.; Johnson, D.R.,
Spectroscopic studies of the SO2 discharge system. I. The microwave spectrum and structure of S2O,
J. Chem. Phys., 1974, 60, 12, 5000, https://doi.org/10.1063/1.1681014
. [all data]
Thorwirth, Theule, et al., 2006
Thorwirth, S.; Theule, P.; Gottlieb, C.A.; Muller, H.S.P.; McCarthy, M.C.; Thaddeus, P.,
Rotational spectroscopy of S2O: Vibrational satellites, 33S isotopomers, and the sub-millimeter-wave spectrum,
J. Mol. Struct., 2006, 795, 1-3, 219, https://doi.org/10.1016/j.molstruc.2006.02.055
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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