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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD(T)/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(T)/6-31G*
 hartrees
Energy at 0K-437.993301
Energy at 298.15K-437.997195
HF Energy-437.699569
Nuclear repulsion energy56.025806
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(T)/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' 3171 3051        
2 A' 3079 2962        
3 A' 2698 2596        
4 A' 1531 1473        
5 A' 1426 1372        
6 A' 1134 1091        
7 A' 823 792        
8 A' 736 708        
9 A" 3168 3048        
10 A" 1519 1461        
11 A" 1015 977        
12 A" 254 244        

Unscaled Zero Point Vibrational Energy (zpe) 10277.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 9887.6 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 CCSD(T)/6-31G*
ABC
3.40995 0.42656 0.40891

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/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 1.292 -0.823 0.000
H4 -1.097 1.470 0.000
H5 0.435 1.559 0.896
H6 0.435 1.559 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82662.39141.09491.09461.0946
S21.82661.34912.38312.45012.4501
H32.39141.34913.31222.68602.6860
H41.09492.38313.31221.77721.7772
H51.09462.45012.68601.77721.7925
H61.09462.45012.68601.77721.7925

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.554 S2 C1 H4 106.618
S2 C1 H5 111.545 S2 C1 H6 111.545
H4 C1 H5 108.528 H4 C1 H6 108.528
H5 C1 H6 109.934
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability