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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 |
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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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