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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-438.053313
Energy at 298.15K-438.057209
HF Energy-437.717340
Nuclear repulsion energy56.416025
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 MP2/6-31G(2df,p)
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' 3236 3056 2.39 52.69 0.75 0.86
2 A' 3128 2955 14.11 93.85 0.00 0.00
3 A' 2793 2638 0.66 105.90 0.34 0.50
4 A' 1519 1435 6.89 12.25 0.75 0.86
5 A' 1387 1310 6.94 1.48 0.59 0.74
6 A' 1116 1054 14.21 9.30 0.73 0.84
7 A' 817 771 0.57 7.19 0.41 0.58
8 A' 745 704 2.27 10.78 0.22 0.36
9 A" 3238 3058 2.73 57.16 0.75 0.86
10 A" 1507 1424 4.12 13.08 0.75 0.86
11 A" 996 940 5.33 3.38 0.75 0.86
12 A" 252 238 15.73 1.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10367.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 9791.8 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 MP2/6-31G(2df,p)
ABC
3.45422 0.43235 0.41465

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

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 -0.822 0.000
H4 -1.093 1.454 0.000
H5 0.431 1.546 0.893
H6 0.431 1.546 -0.893

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81512.37711.08881.08771.0877
S21.81511.33572.36272.43172.4317
H32.37711.33573.28752.66902.6690
H41.08882.36273.28751.76911.7691
H51.08772.43172.66901.76911.7863
H61.08772.43172.66901.76911.7863

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.772 S2 C1 H4 106.192
S2 C1 H5 111.313 S2 C1 H6 111.313
H4 C1 H5 108.740 H4 C1 H6 108.740
H5 C1 H6 110.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability