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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-475.958210
Energy at 298.15K-475.962055
HF Energy-475.551347
Nuclear repulsion energy92.846464
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 MP3/6-31G*
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' 3215 3018 8.50      
2 A' 3170 2975 15.36      
3 A' 3092 2902 5.18      
4 A' 1545 1450 4.11      
5 A' 1466 1376 38.01      
6 A' 1448 1359 22.84      
7 A' 1224 1149 19.30      
8 A' 1129 1060 2.18      
9 A' 870 817 1.80      
10 A' 410 385 1.47      
11 A" 3155 2961 9.05      
12 A" 1533 1439 10.39      
13 A" 1091 1024 4.20      
14 A" 788 740 18.20      
15 A" 171 161 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 12154.1 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 11407.8 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 MP3/6-31G*
ABC
1.63169 0.19099 0.17659

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.496 0.702 0.000
S3 0.880 -0.734 0.000
H4 0.512 1.587 0.000
H5 -1.944 -0.293 0.000
H6 -1.839 1.257 0.881
H7 -1.839 1.257 -0.881

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49821.61661.09262.14872.13602.1360
C21.49822.77662.19461.09111.09671.0967
S31.61662.77662.34992.85913.48393.4839
H41.09262.19462.34993.09322.53242.5324
H52.14871.09112.85913.09321.78621.7862
H62.13601.09673.48392.53241.78621.7625
H72.13601.09673.48392.53241.78621.7625

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.194 C1 C2 H6 109.837
C1 C2 H7 109.837 C2 C1 S3 126.067
C2 C1 H4 114.888 S3 C1 H4 119.046
H5 C2 H6 109.466 H5 C2 H7 109.466
H6 C2 H7 106.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability