Sulfur monoxide

• Formula: OS
• Molecular weight: 48.064
• IUPAC Standard InChI: InChI=1S/OS/c1-2 Copy

  
• IUPAC Standard InChIKey: XTQHKBHJIVJGKJ-UHFFFAOYSA-N Copy
• 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
  The 3d structure may be viewed using Java or Javascript.
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Ion clustering data
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
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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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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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

(O₂S^- • 4294967295) +  = O₂S^-

By formula: (O₂S^- • 4294967295OS) + OS = O₂S^-

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 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)

Electron affinity determinations

Ionization energy determinations

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics 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

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• 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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