Sulfur monoxide
- Formula: OS
- Molecular weight: 48.064
- IUPAC Standard InChIKey: XTQHKBHJIVJGKJ-UHFFFAOYSA-N
- CAS Registry Number: 13827-32-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Gas phase thermochemistry data
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.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 1.20 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1977 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 53.045 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 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. to 1400. | 1400. to 6000. |
---|---|---|
A | 5.392959 | 5.617560 |
B | 7.154171 | 2.586360 |
C | -5.468421 | -0.540288 |
D | 1.531781 | 0.040286 |
E | 0.011367 | 1.207591 |
F | -0.645850 | 1.296810 |
G | 57.73210 | 60.89230 |
H | 1.196701 | 1.196701 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in June, 1977 | Data last reviewed in June, 1977 |
Reaction thermochemistry data
Go To: Top, Gas phase 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: 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
By formula: (O2S- • 4294967295OS) + OS = O2S-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123.5 ± 1.2 | kcal/mol | N/A | Nimlos and Ellison, 1986 | gas phase |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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 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
View reactions leading to OS+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.294 ± 0.004 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.1250 ± 0.0050 | LPES | Polak, Fiala, et al., 1991 | ΔHf(AH) from data on HOS-; B |
1.19858 | R-A | Refaey and Franklin, 1976 | I- + SO2 ->.; B |
1.090 ± 0.050 | PD | Feldman, 1970 | B |
1.10002 | EIAE | Harland, Franklin, et al., 1973 | From SO2; B |
>1.20 ± 0.10 | EIAE | Thynne, 1972 | From SO2; B |
<1.11879 | IMRB | Kraus, Muller-Duysing, et al., 1961 | B |
<1.09997 | IMRB | Henglein and Muccini, 1959 | EA: < SO2; B |
1.15999 | EIAE | Reese, Dibeter, et al., 1958 | From SO2; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.294 ± 0.004 | PIPECO | Norwood and Ng, 1989 | LL |
10.20 ± 0.03 | EI | Tal'roze, Butkovskaya, et al., 1978 | LLK |
10.31 | PE | Golob, Jonathan, et al., 1974 | LLK |
10.33 ± 0.01 | PE | Dyke, Golob, et al., 1974 | LLK |
10.29 ± 0.01 | PE | Dyke, Golob, et al., 1974 | LLK |
10.28 ± 0.02 | EI | Hildenbrand, 1973 | LLK |
~11.3 | PE | Jonathan, Morris, et al., 1972 | LLK |
10.34 ± 0.02 | PE | Jonathan, Smith, et al., 1971 | LLK |
10.0 ± 0.1 | S | Donovan, Husain, et al., 1969 | RDSH |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Reaction 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: 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: (O2S- • 4294967295OS) + OS = O2S-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 123.5 ± 1.2 | kcal/mol | N/A | Nimlos and Ellison, 1986 | gas phase |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, 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]
Polak, Fiala, et al., 1991
Polak, M.L.; Fiala, B.L.; Lineberger, W.C.; Ervin, K.M.,
The Ultraviolet Photoelectron Spectrum of SO-,
J. Chem. Phys., 1991, 94, 10, 6926, https://doi.org/10.1063/1.460223
. [all data]
Refaey and Franklin, 1976
Refaey, K.M.A.; Franklin, J.L.,
Endoergic ion-molecule-collision processes of negative ions. I. Collision of I- on SO2,
J. Chem. Phys., 1976, 65, 1994. [all data]
Feldman, 1970
Feldman, D.,
Photoablosung von Elektronen bei einigen Stabilen Negativen Ionen,
Z. Naturfor., 1970, 25A, 621. [all data]
Harland, Franklin, et al., 1973
Harland, P.W.; Franklin, J.L.; Carter, D.E.,
Use of translational energy measurements in the evaluation of the energetics for dissociative attachment processes,
J. Chem. Phys., 1973, 58, 1430. [all data]
Thynne, 1972
Thynne, J.C.J.,
Negative Ion Studies with a Time-of-Flight Mass Spectrometer.,
Dyn. Mass Spectrom., 1972, 3, 67. [all data]
Kraus, Muller-Duysing, et al., 1961
Kraus, K.; Muller-Duysing, W.; Neuert, H.,
Uber Stosse Langsamer Negativer Ionen mit Ladungsubertragung,
Z. Naturfor., 1961, 16A, 1385. [all data]
Henglein and Muccini, 1959
Henglein, A.; Muccini, G.A.,
Negative Ion-Molecule Reactions,
J. Chem. Phys., 1959, 31, 5, 1426, https://doi.org/10.1063/1.1730618
. [all data]
Reese, Dibeter, et al., 1958
Reese, R.M.; Dibeter, V.H.; Franklin, J.L.,
Electron impact studies of sulfur dioxide and sulfuryl fluoride,
J. Chem. Phys., 1958, 29, 880. [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]
Tal'roze, Butkovskaya, et al., 1978
Tal'roze, V.L.; Butkovskaya, N.I.; Larichev, M.N.; Leipunskii, I.O.; Morozov, I.I.; Dodonov, A.F.; Kudrov, B.V.; Zelenov, V.V.; Raznikov, V.V.,
Advances in the mass spectrometry of free radicals,
Adv. Mass Spectrom., 1978, 7, 693. [all data]
Golob, Jonathan, et al., 1974
Golob, L.; Jonathan, N.; Morris, A.; Okuda, M.; Ross, K.J.; Smith, D.J.,
Vacuum ultraviolet photoelectron spectroscopy of transient species: the SO(3Σ-) radical,
Ber. Bunsen-Ges. Phys. Chem., 1974, 78, 201. [all data]
Dyke, Golob, et al., 1974
Dyke, J.M.; Golob, L.; Jonathan, N.; Morris, A.; Okuda, M.; Smith, D.J.,
Vacuum ultraviolet photoelectron spectroscopy of transient species. Part 3. The SO(3Σ-) radical,
J. Chem. Soc. Faraday Trans. 2, 1974, 70, 1818. [all data]
Hildenbrand, 1973
Hildenbrand, D.L.,
Dissociation energies of the molecules AlO and Al2O,
Chem. Phys. Lett., 1973, 20, 127. [all data]
Jonathan, Morris, et al., 1972
Jonathan, N.; Morris, A.; Okuda, M.; Smith, D.J.,
Electron spectroscopy of transient species
in Electron Spectroscopy, ed. D.A. Shirley (North-Holland Pub. Co., Amsterdam), 1972, 345. [all data]
Jonathan, Smith, et al., 1971
Jonathan, N.; Smith, D.J.; Ross, K.J.,
The high resolution photoelectron spectra of transient species: sulphur monoxide,
Chem. Phys. Lett., 1971, 9, 217. [all data]
Donovan, Husain, et al., 1969
Donovan, R.J.; Husain, D.; Jackson, P.T.,
Spectroscopic and kinetic studies of the SO radical and the photolysis of thionyl chloride,
J. Chem. Soc. Faraday Trans., 1969, 65, 2930. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
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 ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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