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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 |
|---|
| Sulfur; disulfur; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/S2/c1-2 | MAHNFPMIPQKPPI-UHFFFAOYSA-N | S=S | disulfur |
| State | Conformation |
|---|---|
| 3Σg | D*H |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
128.60 | 0.30 | kJ mol-1 | CODATA | |
Hfg(0K) ![]() |
128.29 | 0.30 | kJ mol-1 | CODATA | |
Entropy (298.15K) ![]() |
228.17 | 0.01 | J K-1 mol-1 | CODATA | |
Integrated Heat Capacity (0 to 298.15K) ![]() |
9.13 | 0.00 | kJ mol-1 | CODATA | |
Heat Capacity (298.15K) ![]() |
32.51 | 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 | Σg | 720 | 726 | 1979HUB/HER | |||||
| ωe | ωexe | ωeye | Be | αe | ZPE | reference |
|---|---|---|---|---|---|---|
| 725.7102 | 2.8582 | 0.2953952 | 1.59754E-03 | 362.189 | 2007Iri:389 |
| A | B | C | reference | comment |
|---|---|---|---|---|
| 0.29547 | 1979HUB/HER |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 57.05361 | amu Å2 | 9.474123E-39 | gm cm2 | |
Point Group D∞h
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rSS | 1.889 | 1 | 2 | 1979HUB/HER | re | |||
| Atom | x (Å) | y (Å) | z (Å) |
|---|---|---|---|
| S1 | 0.0000 | 0.0000 | 0.0000 |
| S2 | 0.0000 | 0.0000 | 1.8892 |
| S1 | S2 | |
|---|---|---|
| S1 | 1.8892 | |
| S2 | 1.8892 |
Bond descriptions
| Bond Type | Count |
|---|---|
| S=S | 1 |
| Atom 1 | Atom 2 |
|---|---|
| S1 | S2 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 3 | 1979HUB/HER | 3Σg |
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 9.356 | 0.002 | 9.550 | webbook |
| Electron Affinity | unc. | reference |
|---|---|---|
| 1.670 | 0.015 | webbook |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 3Σg | D∞h | True | 0.000 | NSRDS-NBS10 | D∞h | 0 | 1 | ||||
| 2 | 1 | 1Σ | D∞h | True | D∞h | 0 | 1 | ||||||
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 3Σg | D∞h | True | D∞h | 0 | 1 | |||||
| 2 | 1 | 1Σ | D∞h | True | D∞h | 0 | 1 | |||||
| squib | reference | DOI |
|---|---|---|
| 1979HUB/HER | Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Co., 1979 | 10.1007/978-1-4757-0961-2 |
| 2007Iri:389 | KK Irikura "Experimental Vibrational Zero-Point Energies: Diatomic Molecules" J. Phys. Chem. Ref. Data 36(2), 389, 2007 | 10.1063/1.2436891 |
| 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 | |
| NSRDS-NBS10 | R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 | 10.6028/NBS.NSRDS.10 |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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