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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 |
|---|
| 2,3-Dithiabutane; (Methyldithio)methane; Dimethyl disulfide; Dimethyl disulphide; Disulfide, dimethyl; Methyl disulfide; 1,2-dimethyldisulfane; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/C2H6S2/c1-3-4-2/h1-2H3 | WQOXQRCZOLPYPM-UHFFFAOYSA-N | CSSC | 1,2-dimethyldisulfane |
| State | Conformation |
|---|---|
| 1A | C2 |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-24.10 | 2.30 | kJ mol-1 | webbook | |
Hfg(0K) ![]() |
2.30 | kJ mol-1 | webbook | ||
Entropy (298.15K) ![]() |
336.80 | J K-1 mol-1 | TRC | ||
Integrated Heat Capacity (0 to 298.15K) ![]() |
19.94 | kJ mol-1 | TRC | ||
Heat Capacity (298.15K) ![]() |
94.22 | J K-1 mol-1 | TRC |
| Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
|---|---|---|---|---|---|---|---|---|---|
| Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
| 1 | A | 2990 | 1969Fra:89 | ||||||
| 2 | A | 2983 | 1969Fra:89 | ||||||
| 3 | A | 2913 | 1969Fra:89 | ||||||
| 4 | A | 1426 | 1969Fra:89 | ||||||
| 5 | A | 1419 | 1969Fra:89 | ||||||
| 6 | A | 1311 | 1969Fra:89 | ||||||
| 7 | A | 955 | 1969Fra:89 | ||||||
| 8 | A | 949 | 1969Fra:89 | ||||||
| 9 | A | 694 | 1969Fra:89 | ||||||
| 10 | A | 509 | 1969Fra:89 | ||||||
| 11 | A | 240 | 1969Fra:89 | ||||||
| 12 | A | 134 | 1969Fra:89 | ||||||
| 13 | A | 117 | 1969Fra:89 | ||||||
| 14 | B | 2990 | 1969Fra:89 | ||||||
| 15 | B | 2983 | 1969Fra:89 | ||||||
| 16 | B | 2915 | 1969Fra:89 | ||||||
| 17 | B | 1430 | 1969Fra:89 | ||||||
| 18 | B | 1415 | 1969Fra:89 | ||||||
| 19 | B | 1303 | 1969Fra:89 | ||||||
| 20 | B | 955 | 1969Fra:89 | ||||||
| 21 | B | 949 | 1969Fra:89 | ||||||
| 22 | B | 691 | 1969Fra:89 | ||||||
| 23 | B | 274 | 1969Fra:89 | ||||||
| 24 | B | 134 | 1969Fra:89 | ||||||
| A | B | C | reference | comment |
|---|---|---|---|---|
| 0.27232 | 0.09395 | 0.08574 | 1992Mey:99 |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 2184064 | amu3Å6 | 1.0000769046951E-113 | gm3 cm6 | |
Point Group C2
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rSS | 2.038 | 1 | 2 | 1976Hellwege(II/7) | ||||
| rCS | 1.810 | 1 | 3 | 1976Hellwege(II/7) | ||||
| rCH | 1.097 | 3 | 5 | 1976Hellwege(II/7) | ||||
| aCSS | 102.8 | 1 | 2 | 4 | 1976Hellwege(II/7) | |||
| aHCS | 108.9 | 1 | 3 | 5 | 1976Hellwege(II/7) | |||
| dCSSC | 84.7 | 3 | 1 | 2 | 4 | 1976Hellwege(II/7) | ||
| Atom | x (Å) | y (Å) | z (Å) |
|---|
Bond descriptions
| Bond Type | Count |
|---|---|
| H-C | 6 |
| C-S | 2 |
| S-S | 1 |
| Atom 1 | Atom 2 |
|---|---|
| S1 | S2 |
| S1 | C3 |
| S2 | C4 |
| C3 | H5 |
| C3 | H6 |
| C3 | H7 |
| C4 | H8 |
| C4 | H9 |
| C4 | H10 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 1 | 1A |
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 7.400 | 0.100 | 8.970 | webbook |
| Electron Affinity | unc. | reference |
|---|---|---|
| 0.230 | 0.210 | webbook |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 1A | C2 | True | C2 | 1 | 3 | ||||||
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 1A | C2 | True | C2 | 1 | 3 | |||||
| squib | reference | DOI |
|---|---|---|
| 1969Fra:89 | Frankiss. Vibrational spectra and structures of S2(CH3)2 and Se2(CH3)2. J. Mol. Struct. Vol. 3. pgs. 89-101. | 10.1016/0022-2860(69)80010-4 |
| 1976Hellwege(II/7) | Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976. | |
| 1992Mey:99 | M Meyer "Infrared, Raman, microwave and ab initio study of dimethyl disulfide: structure and forcefield" J. Mol. Struct. 273 (1992) 99-121 | 10.1016/0022-2860(92)87078-a |
| TRC | Frenkel, M; Marsh, K.N.; Wilhoit, R.C.; Kabo, G.J.; Roganov, G.N.,Thermodynamics of Organic Compounds in the Gas State,Thermodynamics Research Center, College Station, TX, 1994 | |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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