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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-476.023616
Energy at 298.15K-476.027433
HF Energy-475.597651
Nuclear repulsion energy92.819238
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 MP2/TZVP
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' 3201 3034 7.90      
2 A' 3134 2971 21.20      
3 A' 3072 2912 6.63      
4 A' 1505 1427 6.18      
5 A' 1419 1345 25.99      
6 A' 1405 1332 25.20      
7 A' 1196 1133 17.48      
8 A' 1104 1047 1.05      
9 A' 847 803 3.44      
10 A' 403 382 1.01      
11 A" 3146 2982 7.96      
12 A" 1486 1409 9.59      
13 A" 1063 1007 7.70      
14 A" 773 733 13.72      
15 A" 163 154 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 11958.2 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 11335.2 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/TZVP
ABC
1.62751 0.19108 0.17658

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 0.000
C2 -1.491 0.708 0.000
S3 0.877 -0.740 0.000
H4 0.517 1.587 0.000
H5 -1.940 -0.283 0.000
H6 -1.831 1.262 0.879
H7 -1.831 1.262 -0.879

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49301.62401.09052.14252.12752.1275
C21.49302.77502.19181.08751.09291.0929
S31.62402.77502.35502.85333.47983.4798
H41.09052.19182.35503.08742.52762.5276
H52.14251.08752.85333.08741.78021.7802
H62.12751.09293.47982.52761.78021.7572
H72.12751.09293.47982.52761.78021.7572

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.285 C1 C2 H6 109.754
C1 C2 H7 109.754 C2 C1 S3 125.770
C2 C1 H4 115.191 S3 C1 H4 119.038
H5 C2 H6 109.470 H5 C2 H7 109.470
H6 C2 H7 107.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability