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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD(T)/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-438.102800
Energy at 298.15K-438.106668
HF Energy-437.717164
Nuclear repulsion energy56.159159
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(2df,p)
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' 3192 3192        
2 A' 3096 3096        
3 A' 2731 2731        
4 A' 1510 1510        
5 A' 1382 1382        
6 A' 1109 1109        
7 A' 805 805        
8 A' 727 727        
9 A" 3194 3194        
10 A" 1500 1500        
11 A" 985 985        
12 A" 243 243        

Unscaled Zero Point Vibrational Energy (zpe) 10236.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10236.4 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(T)/6-31G(2df,p)
ABC
3.43328 0.42786 0.41036

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.158 0.000
S2 -0.048 -0.668 0.000
H3 1.284 -0.825 0.000
H4 -1.096 1.461 0.000
H5 0.433 1.552 0.895
H6 0.433 1.552 -0.895

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82552.38821.09111.09011.0901
S21.82551.34082.37322.44162.4416
H32.38821.34083.29992.67882.6788
H41.09112.37323.29991.77391.7739
H51.09012.44162.67881.77391.7902
H61.09012.44162.67881.77391.7902

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.727 S2 C1 H4 106.169
S2 C1 H5 111.227 S2 C1 H6 111.227
H4 C1 H5 108.840 H4 C1 H6 108.840
H5 C1 H6 110.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability