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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Experimental > One molecule all properties | |
| Other names |
|---|
| Bisulfite; Fermenicide liquid; Fermenicide powder; Fermenticide liquid; Schwefeldioxyd; Siarki dwutlenek; Sulfur dioxide; Sulfur oxide; Sulfur oxide (SO2); Sulfurous acid anhydride; Sulfurous anhydride; Sulfurous oxide; Sulphur dioxide; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/O2S/c1-3-2 | RAHZWNYVWXNFOC-UHFFFAOYSA-N | O=S=O | Sulfur dioxide |
| State | Conformation |
|---|---|
| 1A1 | C2V |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-296.81 | 0.20 | kJ mol-1 | CODATA | |
Hfg(0K) ![]() |
-294.30 | 0.20 | kJ mol-1 | CODATA | |
Entropy (298.15K) ![]() |
248.22 | 0.05 | J K-1 mol-1 | CODATA | |
Integrated Heat Capacity (0 to 298.15K) ![]() |
10.55 | 0.01 | kJ mol-1 | CODATA | |
Heat Capacity (298.15K) ![]() |
39.84 | J K-1 mol-1 | Gurvich |
| Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
|---|---|---|---|---|---|---|---|---|---|
| Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
| 1 | A1 | 1151 | 1168 | 1982vibint | 25.0 | 1982vibint | SO2 s-str | ||
| 2 | A1 | 518 | 526 | 1982vibint | 25.2 | 1982vibint | bend | ||
| 3 | B2 | 1362 | 1381 | 1982vibint | 189.0 | 1982vibint | SO2 a-str | ||
| A | B | C | reference | comment |
|---|---|---|---|---|
| 2.02736 | 0.34417 | 0.29354 | 1966Herzberg |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 23389.76 | amu3Å6 | 1.07101063996828E-115 | gm3 cm6 | |
Point Group C2v
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rSO | 1.432 | 1 | 2 | 1966Herzberg | ||||
| aOSO | 119.5 | 2 | 1 | 3 | 1966Herzberg | |||
| Atom | x (Å) | y (Å) | z (Å) |
|---|---|---|---|
| S1 | 0.0000 | 0.0000 | 0.0000 |
| O2 | 0.0000 | 1.2371 | 0.7215 |
| O3 | 0.0000 | -1.2371 | 0.7215 |
| S1 | O2 | O3 | |
|---|---|---|---|
| S1 | 1.4321 | 1.4321 | |
| O2 | 1.4321 | 2.4742 | |
| O3 | 1.4321 | 2.4742 |
Experimental Bond Angles (degrees) from cartesians
| atom1 | atom2 | atom3 | angle |
|---|---|---|---|
| O2 | S1 | O3 | 119.500 |
Bond descriptions
| Bond Type | Count |
|---|---|
| O=S | 2 |
| Atom 1 | Atom 2 |
|---|---|
| S1 | O2 |
| S1 | O3 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 1 | 1A1 | |
| 25766.9 | 3 | 1966Herzberg |
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 12.349 | 0.001 | 12.500 | webbook |
| Electron Affinity | unc. | reference |
|---|---|---|
| 1.107 | 0.008 | webbook |
| Proton Affinity | unc. | Product | reference | comment |
|---|---|---|---|---|
| 672.3 | SO2H+ | webbook |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | 1.633 | 1979Pat/Mar:2740-2747 | MW μ0 μe=1.62673 |
C2v | 1 | 2 | |||
| Vibrational Quantum numbers | Dip x | Dip y | Dip z | Dip total | Squib | Comment |
|---|---|---|---|---|---|---|
| equil | 1.627 | 1979Pat/Mar:2740-2747 | ||||
| 000 | 0.000 | 0.000 | 0.000 | 1.633 | 1979Pat/Mar:2740-2747 | |
| 100 | 0.000 | 0.000 | 0.000 | 1.633 | 1979Pat/Mar:2740-2747 | |
| 010 | 0.000 | 0.000 | 0.000 | 1.626 | 1979Pat/Mar:2740-2747 | |
| 001 | 0.000 | 0.000 | 0.000 | 1.652 | 1979Pat/Mar:2740-2747 | |
| 200 | 0.000 | 0.000 | 0.000 | 1.633 | 1979Pat/Mar:2740-2747 | |
| 110 | 0.000 | 0.000 | 0.000 | 1.626 | 1979Pat/Mar:2740-2747 | |
| 020 | 0.000 | 0.000 | 0.000 | 1.619 | 1979Pat/Mar:2740-2747 | |
| 011 | 0.000 | 0.000 | 0.000 | 1.645 | 1979Pat/Mar:2740-2747 |
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | 3.860 | -4.910 | 1.020 | 1984Gra/Gub | Qxx=3.86+-0.06, -4.91+-0.10, 1.02+-0.03 | C2v | 1 | 2 |
| alpha | unc. | Reference |
|---|---|---|
| 3.882 | 1951LB1.3:509 |
| squib | reference | DOI |
|---|---|---|
| 1951LB1.3:509 | Landolt-Bornstein Vol 1 part 3 p509 (1951) | |
| 1966Herzberg | Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966 | |
| 1979Pat/Mar:2740-2747 | D Patel, D Margolese, TR Dyke "Electric dipole moment of SO2 in ground and excited vibrational states" J. Chem. Phys. 70, 2740 (1979) | 10.1063/1.437860 |
| 1982vibint | "Vibrational Intensities in Infrared and Raman Spectroscopy" WB Person, G Zerbi, ed. Elsevier, Amsterdam, 1982 | |
| 1984Gra/Gub | CG Gray, KE Gubbins "Theory of molecular fluids. Volume 1:Fundamentals" Clarendon Press, Oxford 1984 | |
| CODATA | Cox, J.D.; Wagman, D.D.; Medvedev, V.A.CODATA Key Values for Thermodynamics. Hemisphere, New York, 1989 | 10.1002/bbpc.19900940121 |
| Gurvich | Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989 | |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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