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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: G3MP2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at G3MP2
 hartrees
Energy at 0K-476.196301
Energy at 298.15K-476.191273
HF Energy-475.551747
Nuclear repulsion energy93.284642
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 HF/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' 3327 3135 19.23      
2 A' 3307 3115 10.91      
3 A' 3195 3010 10.08      
4 A' 1626 1532 4.83      
5 A' 1552 1462 21.64      
6 A' 1525 1437 62.28      
7 A' 1252 1179 56.00      
8 A' 1185 1117 14.43      
9 A' 896 844 1.43      
10 A' 425 400 2.94      
11 A" 3246 3058 15.76      
12 A" 1616 1523 9.60      
13 A" 1163 1096 4.27      
14 A" 846 797 11.87      
15 A" 172 162 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 12665.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 11933.7 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 MP2=FULL/6-31G*
ABC
1.63118 0.19102 0.17659

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.624 0.000
C2 -1.492 0.707 0.000
S3 0.878 -0.738 0.000
H4 0.517 1.587 0.000
H5 -1.942 -0.286 0.000
H6 -1.835 1.263 0.880
H7 -1.835 1.263 -0.880

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49421.62021.09392.14482.13282.1328
C21.49422.77552.19381.09061.09591.0959
S31.62022.77552.35332.85593.48353.4835
H41.09392.19382.35333.09202.53222.5322
H52.14481.09062.85593.09201.78501.7850
H62.13281.09593.48352.53221.78501.7603
H72.13281.09593.48352.53221.78501.7603

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.719 C1 C2 H6 109.502
C1 C2 H7 109.502 C2 C1 S3 126.680
C2 C1 H4 114.336 S3 C1 H4 118.984
H5 C2 H6 109.538 H5 C2 H7 109.538
H6 C2 H7 106.922
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability