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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-438.021597
Energy at 298.15K-438.025508
HF Energy-437.708817
Nuclear repulsion energy56.290508
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/6-31G**
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' 3229 3040 10.71      
2 A' 3131 2948 26.12      
3 A' 2777 2614 19.60      
4 A' 1547 1456 6.49      
5 A' 1437 1353 10.52      
6 A' 1148 1081 20.62      
7 A' 833 785 1.66      
8 A' 746 702 1.37      
9 A" 3228 3038 13.36      
10 A" 1531 1442 3.75      
11 A" 1022 962 4.42      
12 A" 253 238 15.67      

Unscaled Zero Point Vibrational Energy (zpe) 10441.2 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 9829.3 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/6-31G**
ABC
3.46440 0.42936 0.41182

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.154 0.000
S2 -0.048 -0.667 0.000
H3 1.279 -0.817 0.000
H4 -1.090 1.467 0.000
H5 0.433 1.552 0.890
H6 0.433 1.552 -0.890

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82142.37551.08781.08731.0873
S21.82141.33492.37532.43952.4395
H32.37551.33493.29022.66832.6683
H41.08782.37533.29021.76571.7657
H51.08732.43952.66831.76571.7800
H61.08732.43952.66831.76571.7800

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.422 S2 C1 H4 106.742
S2 C1 H5 111.498 S2 C1 H6 111.498
H4 C1 H5 108.540 H4 C1 H6 108.540
H5 C1 H6 109.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability