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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD(TQ)/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(TQ)/6-31+G**
 hartrees
Energy at 0K-438.033389
Energy at 298.15K-438.037282
HF Energy-437.709679
Nuclear repulsion energy56.167125
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 QCISD(TQ)/6-31+G**
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' 3208 3208        
2 A' 3109 3109        
3 A' 2756 2756        
4 A' 1517 1517        
5 A' 1423 1423        
6 A' 1132 1132        
7 A' 823 823        
8 A' 732 732        
9 A" 3202 3202        
10 A" 1497 1497        
11 A" 1006 1006        
12 A" 250 250        

Unscaled Zero Point Vibrational Energy (zpe) 10327.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10327.5 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 QCISD(TQ)/6-31+G**
ABC
3.45320 0.42723 0.40982

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.157 0.000
S2 -0.048 -0.669 0.000
H3 1.281 -0.818 0.000
H4 -1.092 1.468 0.000
H5 0.433 1.557 0.892
H6 0.433 1.557 -0.892

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82622.38001.08931.08901.0890
S21.82621.33672.37832.44572.4457
H32.38001.33673.29422.67432.6743
H41.08932.37833.29421.76861.7686
H51.08902.44572.67431.76861.7832
H61.08902.44572.67431.76861.7832

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.377 S2 C1 H4 106.570
S2 C1 H5 111.538 S2 C1 H6 111.538
H4 C1 H5 108.568 H4 C1 H6 108.568
H5 C1 H6 109.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability