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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: CCSD/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/6-31G(2df,p)
 hartrees
Energy at 0K-438.089944
Energy at 298.15K-438.093827
HF Energy-437.717276
Nuclear repulsion energy56.265269
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/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' 3207 3032 4.54      
2 A' 3112 2942 17.39      
3 A' 2749 2599 3.35      
4 A' 1521 1439 6.22      
5 A' 1396 1320 7.59      
6 A' 1121 1060 13.55      
7 A' 814 770 0.68      
8 A' 738 698 1.99      
9 A" 3208 3033 5.33      
10 A" 1509 1427 3.74      
11 A" 995 941 4.41      
12 A" 244 231 14.26      

Unscaled Zero Point Vibrational Energy (zpe) 10307.6 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 9745.8 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/6-31G(2df,p)
ABC
3.44449 0.42970 0.41210

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.154 0.000
S2 -0.048 -0.666 0.000
H3 1.283 -0.822 0.000
H4 -1.095 1.457 0.000
H5 0.433 1.549 0.894
H6 0.433 1.549 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81972.38181.08991.08921.0892
S21.81971.33952.36722.43672.4367
H32.38181.33953.29322.67262.6726
H41.08992.36723.29321.77221.7722
H51.08922.43672.67261.77221.7876
H61.08922.43672.67261.77221.7876

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.681 S2 C1 H4 106.170
S2 C1 H5 111.290 S2 C1 H6 111.290
H4 C1 H5 108.833 H4 C1 H6 108.833
H5 C1 H6 110.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability