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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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Mercaptan methylique; Mercaptomethane; Methaanthiol; Methanethiol; Methanthiol; Methvtiolo; Methyl mercaptan; Methyl sulfhydrate; Methyl thioalcohol; Methylmercaptaan; Metilmercaptano; Thiomethanol; |
INChI | INChIKey | SMILES | IUPAC name |
---|---|---|---|
InChI=1S/CH4S/c1-2/h2H,1H3 | LSDPWZHWYPCBBB-UHFFFAOYSA-N | CS | Methanethiol |
State | Conformation |
---|---|
1A' | CS |
Property | Value | Uncertainty | units | Reference | Comment |
---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-22.84 | 0.59 | kJ mol-1 | webbook | |
Hfg(0K) ![]() |
-11.88 | 0.59 | kJ mol-1 | webbook | |
Entropy (298.15K) ![]() |
255.14 | J K-1 mol-1 | webbook | ||
Integrated Heat Capacity (0 to 298.15K) ![]() |
12.10 | kJ mol-1 | webbook | ||
Heat Capacity (298.15K) ![]() |
50.26 | 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' | 3000 | 1974sve/kov | ||||||
2 | A' | 2931 | 1974sve/kov | ||||||
3 | A' | 2597 | 1974sve/kov | ||||||
4 | A' | 1475 | 1974sve/kov | ||||||
5 | A' | 1335 | 1974sve/kov | ||||||
6 | A' | 1074 | 1974sve/kov | 976 switched from mode 11 | |||||
7 | A' | 803 | 1974sve/kov | ||||||
8 | A' | 708 | 1974sve/kov | ||||||
9 | A" | 3000 | 1974sve/kov | ||||||
10 | A" | 1430 | 1974sve/kov | ||||||
11 | A" | 976 | 1974sve/kov | 1074 switched from mode 6 |
A | B | C | reference | comment |
---|---|---|---|---|
3.42541 | 0.43188 | 0.41316 | 1999Bet/Sas:789 |
Product of moments of inertia ![]() | ||||
---|---|---|---|---|
7837.875 | amu3Å6 | 3.58894124003262E-116 | gm3 cm6 |
Point Group Cs
Description | Value | unc. | Connectivity | Reference | Comment | |||
---|---|---|---|---|---|---|---|---|
Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
rCS | 1.818 | 1 | 2 | 1966Herzberg | ||||
rCH | 1.104 | 1 | 4 | 1966Herzberg | ||||
rSH | 1.329 | 2 | 3 | 1966Herzberg | ||||
aHCH | 110.3 | 4 | 1 | 5 | 1966Herzberg | |||
aHSC | 100.3 | 1 | 2 | 3 | 1966Herzberg |
Atom | x (Å) | y (Å) | z (Å) |
---|---|---|---|
C1 | -0.8500 | -0.0344 | -0.2000 |
S2 | 0.9000 | -0.5125 | -0.1219 |
H3 | 1.4219 | 0.5781 | 0.4250 |
H4 | -0.9406 | 0.8688 | -0.8219 |
H5 | -1.4219 | -0.8688 | -0.6469 |
H6 | -1.2031 | 0.1656 | 0.8219 |
C1 | S2 | H3 | H4 | H5 | H6 | |
---|---|---|---|---|---|---|
C1 | 1.8158 | 2.4346 | 1.1003 | 1.1059 | 1.0995 | |
S2 | 1.8158 | 1.3270 | 2.4054 | 2.4070 | 2.4028 | |
H3 | 2.4346 | 1.3270 | 2.6871 | 3.3659 | 2.6867 | |
H4 | 1.1003 | 2.4054 | 2.6871 | 1.8114 | 1.8070 | |
H5 | 1.1059 | 2.4070 | 3.3659 | 1.8114 | 1.8097 | |
H6 | 1.0995 | 2.4028 | 2.6867 | 1.8070 | 1.8097 |
Experimental Bond Angles (degrees) from cartesians
atom1 | atom2 | atom3 | angle | atom1 | atom2 | atom3 | angle | |
---|---|---|---|---|---|---|---|---|
C1 | S2 | H3 | 100.390 | S2 | C1 | H4 | 108.653 | |
S2 | C1 | H5 | 108.488 | S2 | C1 | H6 | 108.508 | |
H4 | C1 | H5 | 110.385 | H4 | C1 | H6 | 110.459 | |
H5 | C1 | H6 | 110.287 |
Bond descriptions
Bond Type | Count |
---|---|
C-S | 1 |
H-C | 3 |
H-S | 1 |
Atom 1 | Atom 2 |
---|---|
C1 | S2 |
C1 | H4 |
C1 | H5 |
C1 | H6 |
S2 | H3 |
Energy (cm-1) | Degeneracy | reference | description |
---|---|---|---|
0 | 1 | 1A' |
Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
---|---|---|---|---|
9.439 | 0.005 | 9.440 | webbook |
Proton Affinity | unc. | Product | reference | comment |
---|---|---|---|---|
773.4 | CH3SH2+ | 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' | Cs | True | 1.520 | NSRDS-NBS10 | MW | Cs | 2 | 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' | Cs | True | Cs | 2 | 3 |
alpha | unc. | Reference |
---|---|---|
5.186 | 0.326 | 2015Tha/Wu:144302 |
squib | reference | DOI |
---|---|---|
1966Herzberg | Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966 | |
1974sve/kov | L.M. Sverdlov, M. A. Kovner, E. P. Krainov, "Vibrational Spectra of Polyatomic Molecules" Wiley, New York 1974 | |
1999Bet/Sas:789 | FL Bettens, KVLN Sastry, E Herbst, S Albert, LC Osterling, FC De Lucia. "The millmeter- and submillimeter-wave spectrum of methyl mercaptan (CH3SH)" Astrophysical J. 510, 789-794, 1999 | 10.1086/306633 |
2015Tha/Wu:144302 | AJ Thakkar, T Wu "How well do static electronic dipole polarizabilities from gas-phase experiments compare with density functional and MP2 computations?" J. Chem. Phys. 143, 144302 (2015) | 10.1063/1.4932594 |
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 |
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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