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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-438.119887
Energy at 298.15K-438.123768
HF Energy-437.756586
Nuclear repulsion energy56.449511
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 MP2/cc-pVTZ
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' 3199 3037 4.62 56.88 0.75 0.86
2 A' 3098 2942 19.82 135.24 0.00 0.00
3 A' 2773 2633 1.39 121.64 0.28 0.44
4 A' 1507 1431 6.68 7.95 0.75 0.86
5 A' 1368 1299 5.96 0.38 0.62 0.77
6 A' 1104 1048 10.88 5.20 0.73 0.84
7 A' 810 769 0.46 7.49 0.31 0.47
8 A' 737 700 1.58 12.09 0.21 0.35
9 A" 3202 3040 5.23 59.58 0.75 0.86
10 A" 1493 1418 4.23 7.67 0.75 0.86
11 A" 986 936 4.39 2.03 0.75 0.86
12 A" 243 231 13.57 3.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10260.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 9741.9 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/cc-pVTZ
ABC
3.46436 0.43257 0.41484

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.151 0.000
S2 -0.048 -0.664 0.000
H3 1.279 -0.818 0.000
H4 -1.091 1.453 0.000
H5 0.430 1.545 0.891
H6 0.430 1.545 -0.891

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81512.37431.08641.08511.0851
S21.81511.33552.36082.42992.4299
H32.37431.33553.28292.66512.6651
H41.08642.36083.28291.76491.7649
H51.08512.42992.66511.76491.7820
H61.08512.42992.66511.76491.7820

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.624 S2 C1 H4 106.172
S2 C1 H5 111.323 S2 C1 H6 111.323
H4 C1 H5 108.734 H4 C1 H6 108.734
H5 C1 H6 110.402
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability