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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-476.158611
Energy at 298.15K-476.162432
HF Energy-475.614843
Nuclear repulsion energy92.842649
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/cc-pVTZ
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' 3165 3024 8.52      
2 A' 3118 2979 16.13      
3 A' 3045 2909 6.65      
4 A' 1501 1435 4.99      
5 A' 1416 1353 26.44      
6 A' 1398 1336 37.78      
7 A' 1181 1129 27.77      
8 A' 1094 1046 5.33      
9 A' 842 804 0.56      
10 A' 394 377 1.96      
11 A" 3104 2966 8.72      
12 A" 1496 1430 7.74      
13 A" 1061 1014 4.48      
14 A" 775 741 12.30      
15 A" 170 163 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11880.6 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 11351.9 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/cc-pVTZ
ABC
1.63262 0.19094 0.17650

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.624 0.000
C2 -1.494 0.705 0.000
S3 0.879 -0.738 0.000
H4 0.513 1.585 0.000
H5 -1.943 -0.284 0.000
H6 -1.832 1.262 0.877
H7 -1.832 1.262 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49611.62091.08892.14522.12932.1293
C21.49612.77682.19141.08681.09281.0928
S31.62092.77682.35112.85793.48113.4811
H41.08892.19142.35113.08672.52522.5252
H52.14521.08682.85793.08671.78131.7813
H62.12931.09283.48112.52521.78131.7548
H72.12931.09283.48112.52521.78131.7548

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.318 C1 C2 H6 109.685
C1 C2 H7 109.685 C2 C1 S3 125.919
C2 C1 H4 115.025 S3 C1 H4 119.056
H5 C2 H6 109.618 H5 C2 H7 109.618
H6 C2 H7 106.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability