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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-437.991617
Energy at 298.15K-437.995517
HF Energy-437.699631
Nuclear repulsion energy56.057902
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 MP4/6-31G*
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' 3181 3037        
2 A' 3085 2945        
3 A' 2720 2597        
4 A' 1534 1465        
5 A' 1429 1365        
6 A' 1136 1085        
7 A' 824 787        
8 A' 739 706        
9 A" 3178 3034        
10 A" 1521 1453        
11 A" 1017 971        
12 A" 256 244        

Unscaled Zero Point Vibrational Energy (zpe) 10310.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 9844.6 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 MP4/6-31G*
ABC
3.41503 0.42699 0.40936

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

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 1.290 -0.823 0.000
H4 -1.097 1.470 0.000
H5 0.434 1.559 0.896
H6 0.434 1.559 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82552.38961.09461.09431.0943
S21.82551.34742.38202.44942.4494
H32.38961.34743.31002.68502.6850
H41.09462.38203.31001.77641.7764
H51.09432.44942.68501.77641.7918
H61.09432.44942.68501.77641.7918

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.565 S2 C1 H4 106.627
S2 C1 H5 111.581 S2 C1 H6 111.581
H4 C1 H5 108.498 H4 C1 H6 108.498
H5 C1 H6 109.909
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability