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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-473.410012
Energy at 298.15K-473.413868
HF Energy-473.166634
Nuclear repulsion energy91.517978
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 CID/3-21G
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' 3206 2987 16.71      
2 A' 3188 2970 0.17      
3 A' 3080 2870 2.92      
4 A' 1584 1475 7.56      
5 A' 1500 1397 11.45      
6 A' 1456 1356 33.39      
7 A' 1167 1087 21.94      
8 A' 1149 1070 11.86      
9 A' 836 779 0.75      
10 A' 411 383 1.65      
11 A" 3126 2913 8.96      
12 A" 1580 1472 12.24      
13 A" 1118 1042 3.87      
14 A" 807 752 28.57      
15 A" 168 157 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 12187.3 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 11353.7 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 CID/3-21G
ABC
1.59180 0.18536 0.17134

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.646 0.000
C2 -1.503 0.735 0.000
S3 0.883 -0.763 0.000
H4 0.527 1.597 0.000
H5 -1.951 -0.259 0.000
H6 -1.843 1.289 0.883
H7 -1.843 1.289 -0.883

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50531.66271.08682.15122.14272.1427
C21.50532.81672.20501.09071.09721.0972
S31.66272.81672.38602.87873.52453.5245
H41.08682.20502.38603.09622.54802.5480
H52.15121.09072.87873.09621.78611.7861
H62.14271.09723.52452.54801.78611.7669
H72.14271.09723.52452.54801.78611.7669

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.916 C1 C2 H6 109.847
C1 C2 H7 109.847 C2 C1 S3 125.454
C2 C1 H4 115.630 S3 C1 H4 118.916
H5 C2 H6 109.446 H5 C2 H7 109.446
H6 C2 H7 107.263
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability