return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-438.069092
Energy at 298.15K-438.072995
HF Energy-437.739856
Nuclear repulsion energy56.236335
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/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' 3167 3022 10.94      
2 A' 3079 2938 28.75      
3 A' 2757 2630 11.68      
4 A' 1504 1435 6.60      
5 A' 1415 1350 11.32      
6 A' 1130 1078 21.35      
7 A' 827 789 1.15      
8 A' 741 707 1.43      
9 A" 3167 3022 13.18      
10 A" 1486 1418 3.22      
11 A" 1010 963 8.99      
12 A" 250 238 14.40      

Unscaled Zero Point Vibrational Energy (zpe) 10265.8 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 9794.6 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/6-311G**
ABC
3.43841 0.42945 0.41185

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.153 0.000
S2 -0.048 -0.667 0.000
H3 1.282 -0.814 0.000
H4 -1.095 1.466 0.000
H5 0.433 1.554 0.894
H6 0.433 1.554 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82042.37451.09281.09191.0919
S21.82041.33832.37662.44272.4427
H32.37451.33833.29392.67002.6700
H41.09282.37663.29391.77261.7726
H51.09192.44272.67001.77261.7888
H61.09192.44272.67001.77261.7888

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.282 S2 C1 H4 106.656
S2 C1 H5 111.559 S2 C1 H6 111.559
H4 C1 H5 108.459 H4 C1 H6 108.459
H5 C1 H6 110.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability