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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP3=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-435.891343
Energy at 298.15K-435.895255
HF Energy-435.636766
Nuclear repulsion energy55.942063
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 MP3=FULL/3-21G*
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' 3175 3175 7.32      
2 A' 3098 3098 19.76      
3 A' 2754 2754 12.50      
4 A' 1585 1585 9.11      
5 A' 1466 1466 3.92      
6 A' 1163 1163 20.02      
7 A' 845 845 1.76      
8 A' 710 710 2.29      
9 A" 3178 3178 10.86      
10 A" 1574 1574 7.13      
11 A" 1039 1039 6.68      
12 A" 256 256 19.31      

Unscaled Zero Point Vibrational Energy (zpe) 10420.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10420.9 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 MP3=FULL/3-21G*
ABC
3.42384 0.42366 0.40639

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.164 0.000
S2 -0.048 -0.672 0.000
H3 1.284 -0.824 0.000
H4 -1.096 1.475 0.000
H5 0.438 1.557 0.896
H6 0.438 1.557 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.83522.39261.09331.09211.0921
S21.83521.34102.38912.45012.4501
H32.39261.34103.30922.68032.6803
H41.09332.38913.30921.77791.7779
H51.09212.45012.68031.77791.7911
H61.09212.45012.68031.77791.7911

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.510 S2 C1 H4 106.571
S2 C1 H5 111.095 S2 C1 H6 111.095
H4 C1 H5 108.894 H4 C1 H6 108.894
H5 C1 H6 110.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability