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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CISD/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 CISD/cc-pVTZ
 hartrees
Energy at 0K-476.086371
Energy at 298.15K-476.090252
HF Energy-475.615291
Nuclear repulsion energy93.466955
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/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' 3240 3013 8.15      
2 A' 3196 2972 14.30      
3 A' 3116 2897 5.54      
4 A' 1542 1433 6.02      
5 A' 1458 1355 39.28      
6 A' 1441 1340 32.03      
7 A' 1221 1135 32.66      
8 A' 1128 1049 5.28      
9 A' 871 810 0.67      
10 A' 406 378 2.29      
11 A" 3175 2952 8.39      
12 A" 1534 1426 8.45      
13 A" 1099 1022 5.16      
14 A" 804 748 12.51      
15 A" 178 166 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 12204.5 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 11347.7 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 CISD/cc-pVTZ
ABC
1.65731 0.19333 0.17877

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.617 0.000
C2 -1.488 0.697 0.000
S3 0.875 -0.730 0.000
H4 0.508 1.573 0.000
H5 -1.936 -0.286 0.000
H6 -1.824 1.252 0.872
H7 -1.824 1.252 -0.872

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48981.60621.08272.13592.11892.1189
C21.48982.76032.17941.08071.08701.0870
S31.60622.76032.33202.84543.45993.4599
H41.08272.17942.33203.07052.51022.5102
H52.13591.08072.84543.07051.77181.7718
H62.11891.08703.45992.51021.77181.7450
H72.11891.08703.45992.51021.77181.7450

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.392 C1 C2 H6 109.636
C1 C2 H7 109.636 C2 C1 S3 126.100
C2 C1 H4 114.899 S3 C1 H4 119.001
H5 C2 H6 109.648 H5 C2 H7 109.648
H6 C2 H7 106.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability