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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCSD/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 CCSD/cc-pVTZ
 hartrees
Energy at 0K-476.157347
Energy at 298.15K-476.161175
HF Energy-475.614922
Nuclear repulsion energy92.919146
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 CCSD/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' 3169 2982 8.23      
2 A' 3122 2938 15.43      
3 A' 3047 2868 6.57      
4 A' 1503 1415 5.08      
5 A' 1418 1335 29.68      
6 A' 1402 1320 32.25      
7 A' 1188 1118 25.12      
8 A' 1098 1033 3.96      
9 A' 846 796 0.93      
10 A' 396 372 1.91      
11 A" 3105 2923 8.64      
12 A" 1497 1409 7.84      
13 A" 1063 1001 4.69      
14 A" 777 731 12.78      
15 A" 172 162 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11900.9 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 11201.1 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 CCSD/cc-pVTZ
ABC
1.63447 0.19128 0.17680

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/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 0.703 0.000
S3 0.879 -0.736 0.000
H4 0.513 1.584 0.000
H5 -1.942 -0.287 0.000
H6 -1.834 1.259 0.877
H7 -1.834 1.259 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49571.61861.08862.14472.12962.1296
C21.49572.77442.19141.08651.09271.0927
S31.61862.77442.34812.85603.47933.4793
H41.08862.19142.34813.08632.52602.5260
H52.14471.08652.85603.08631.78081.7808
H62.12961.09273.47932.52601.78081.7536
H72.12961.09273.47932.52601.78081.7536

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.326 C1 C2 H6 109.741
C1 C2 H7 109.741 C2 C1 S3 125.919
C2 C1 H4 115.079 S3 C1 H4 119.003
H5 C2 H6 109.600 H5 C2 H7 109.600
H6 C2 H7 106.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability