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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCD/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 CCD/6-31G(2df,p)
 hartrees
Energy at 0K-438.088240
Energy at 298.15K-438.092128
HF Energy-437.717307
Nuclear repulsion energy56.296425
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 CCD/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' 3218 3048 3.99      
2 A' 3120 2955 16.18      
3 A' 2760 2614 2.65      
4 A' 1524 1443 6.31      
5 A' 1400 1326 7.09      
6 A' 1123 1064 13.65      
7 A' 817 773 0.68      
8 A' 742 703 1.93      
9 A" 3220 3050 4.68      
10 A" 1512 1432 3.85      
11 A" 998 945 4.50      
12 A" 245 232 14.37      

Unscaled Zero Point Vibrational Energy (zpe) 10339.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 9793.4 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 CCD/6-31G(2df,p)
ABC
3.44819 0.43016 0.41255

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.154 0.000
S2 -0.048 -0.666 0.000
H3 1.281 -0.827 0.000
H4 -1.093 1.461 0.000
H5 0.433 1.548 0.893
H6 0.433 1.548 -0.893

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81992.38561.08941.08831.0883
S21.81991.33832.36962.43562.4356
H32.38561.33833.29702.67602.6760
H41.08942.36963.29701.77041.7704
H51.08832.43562.67601.77041.7864
H61.08832.43562.67601.77041.7864

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.931 S2 C1 H4 106.345
S2 C1 H5 111.247 S2 C1 H6 111.247
H4 C1 H5 108.775 H4 C1 H6 108.775
H5 C1 H6 110.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability