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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-438.004693
Energy at 298.15K-438.008611
HF Energy-437.729731
Nuclear repulsion energy56.338178
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 CISD/6-311G*
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' 3209 2970 10.07      
2 A' 3121 2888 29.88      
3 A' 2694 2493 16.38      
4 A' 1544 1429 8.80      
5 A' 1447 1339 7.36      
6 A' 1154 1068 24.02      
7 A' 833 770 1.60      
8 A' 753 697 1.97      
9 A" 3209 2969 12.64      
10 A" 1533 1418 5.61      
11 A" 1031 954 11.60      
12 A" 252 234 18.77      

Unscaled Zero Point Vibrational Energy (zpe) 10389.4 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 9613.4 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 CISD/6-311G*
ABC
3.45217 0.43122 0.41342

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.151 0.000
S2 -0.048 -0.665 0.000
H3 1.285 -0.825 0.000
H4 -1.090 1.464 0.000
H5 0.431 1.550 0.891
H6 0.431 1.550 -0.891

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81642.38411.08821.08751.0875
S21.81641.34272.37042.43582.4358
H32.38411.34273.29882.67722.6772
H41.08822.37043.29881.76531.7653
H51.08752.43582.67721.76531.7816
H61.08752.43582.67721.76531.7816

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.845 S2 C1 H4 106.685
S2 C1 H5 111.546 S2 C1 H6 111.546
H4 C1 H5 108.458 H4 C1 H6 108.458
H5 C1 H6 109.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability