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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-475.971999
Energy at 298.15K-475.975857
HF Energy-475.588869
Nuclear repulsion energy93.082322
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 CISD/6-311G*
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' 3225 2984 12.16      
2 A' 3181 2943 19.55      
3 A' 3103 2871 7.12      
4 A' 1553 1437 4.89      
5 A' 1473 1363 43.40      
6 A' 1455 1347 33.56      
7 A' 1227 1135 34.92      
8 A' 1137 1052 5.10      
9 A' 872 807 0.25      
10 A' 413 382 1.01      
11 A" 3162 2926 12.27      
12 A" 1537 1422 12.81      
13 A" 1099 1016 5.99      
14 A" 800 740 19.77      
15 A" 165 153 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 12200.3 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 11289.0 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 CISD/6-311G*
ABC
1.65117 0.19146 0.17716

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.616 0.000
C2 -1.494 0.703 0.000
S3 0.879 -0.733 0.000
H4 0.514 1.576 0.000
H5 -1.951 -0.283 0.000
H6 -1.832 1.260 0.877
H7 -1.832 1.260 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49671.61021.08922.14792.13092.1309
C21.49672.77392.19021.08661.09261.0926
S31.61022.77392.33772.86533.47733.4773
H41.08922.19022.33773.08762.52502.5250
H52.14791.08662.86533.08761.77881.7788
H62.13091.09263.47732.52501.77881.7543
H72.13091.09263.47732.52501.77881.7543

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.512 C1 C2 H6 109.779
C1 C2 H7 109.779 C2 C1 S3 126.418
C2 C1 H4 114.856 S3 C1 H4 118.726
H5 C2 H6 109.430 H5 C2 H7 109.430
H6 C2 H7 106.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability