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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-31G*
 hartrees
Energy at 0K-437.985956
Energy at 298.15K 
HF Energy-437.699724
Nuclear repulsion energy56.128837
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 CCSD/6-31G*
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' 3189 3011 8.96      
2 A' 3098 2925 24.44      
3 A' 2717 2566 25.45      
4 A' 1539 1453 7.92      
5 A' 1436 1356 6.92      
6 A' 1143 1079 21.18      
7 A' 830 784 1.59      
8 A' 747 705 1.51      
9 A" 3187 3010 11.35      
10 A" 1526 1441 5.45      
11 A" 1022 965 5.82      
12 A" 253 239 17.84      

Unscaled Zero Point Vibrational Energy (zpe) 10343.5 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 9767.4 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 CCSD/6-31G*
ABC
3.42063 0.42828 0.41054

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.155 0.000
S2 -0.048 -0.668 0.000
H3 1.290 -0.824 0.000
H4 -1.095 1.470 0.000
H5 0.435 1.556 0.895
H6 0.435 1.556 -0.895

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82262.38861.09351.09301.0930
S21.82261.34732.38042.44512.4451
H32.38861.34733.30912.68222.6822
H41.09352.38043.30911.77451.7745
H51.09302.44512.68221.77451.7895
H61.09302.44512.68221.77451.7895

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.644 S2 C1 H4 106.748
S2 C1 H5 111.529 S2 C1 H6 111.529
H4 C1 H5 108.504 H4 C1 H6 108.504
H5 C1 H6 109.889
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability