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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: G3MP2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3MP2
 hartrees
Energy at 0K-438.170515
Energy at 298.15K-438.165935
HF Energy-437.700320
Nuclear repulsion energy56.473617
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3326 3134 12.42 73.05 0.75 0.86
2 A' 3239 3052 35.65 110.55 0.01 0.02
3 A' 2906 2738 23.05 158.74 0.41 0.58
4 A' 1635 1540 7.50 17.47 0.75 0.86
5 A' 1521 1433 13.51 1.09 0.65 0.79
6 A' 1220 1149 23.41 17.20 0.70 0.82
7 A' 873 822 2.25 7.32 0.65 0.79
8 A' 776 731 4.28 24.96 0.30 0.46
9 A" 3327 3134 15.29 77.80 0.75 0.86
10 A" 1623 1529 4.92 19.11 0.75 0.86
11 A" 1079 1017 4.09 6.51 0.75 0.86
12 A" 265 250 18.91 4.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10894.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 10264.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G*
ABC
3.44745 0.43206 0.41421

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.149 0.000
S2 -0.048 -0.665 0.000
H3 1.283 -0.823 0.000
H4 -1.093 1.461 0.000
H5 0.432 1.551 0.892
H6 0.432 1.551 -0.892

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81402.37951.09031.09001.0900
S21.81401.34062.36902.43672.4367
H32.37951.34063.29602.67552.6755
H41.09032.36903.29601.76881.7688
H51.09002.43672.67551.76881.7844
H61.09002.43672.67551.76881.7844

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.937 S2 C1 H4 106.695
S2 C1 H5 111.270 S2 C1 H6 111.270
H4 C1 H5 108.737 H4 C1 H6 108.737
H5 C1 H6 110.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability