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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CISD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-476.082986
Energy at 298.15K-476.086864
HF Energy-475.612311
Nuclear repulsion energy93.602571
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/Def2TZVPP
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' 3243 3243 8.00      
2 A' 3198 3198 14.12      
3 A' 3119 3119 5.68      
4 A' 1542 1542 6.36      
5 A' 1459 1459 35.35      
6 A' 1442 1442 35.40      
7 A' 1222 1222 32.89      
8 A' 1127 1127 4.85      
9 A' 871 871 0.70      
10 A' 407 407 2.20      
11 A" 3177 3177 7.90      
12 A" 1534 1534 8.53      
13 A" 1101 1101 5.83      
14 A" 804 804 12.09      
15 A" 180 180 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 12212.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12212.6 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/Def2TZVPP
ABC
1.66077 0.19390 0.17930

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.615 0.000
C2 -1.488 0.693 0.000
S3 0.875 -0.726 0.000
H4 0.505 1.572 0.000
H5 -1.934 -0.291 0.000
H6 -1.824 1.247 0.872
H7 -1.824 1.247 -0.872

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49001.60141.08252.13592.11862.1186
C21.49002.75672.17851.08061.08681.0868
S31.60142.75672.32792.84303.45583.4558
H41.08252.17852.32793.06972.50862.5086
H52.13591.08062.84303.06971.77201.7720
H62.11861.08683.45582.50861.77201.7448
H72.11861.08683.45582.50861.77201.7448

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.380 C1 C2 H6 109.612
C1 C2 H7 109.612 C2 C1 S3 126.141
C2 C1 H4 114.820 S3 C1 H4 119.038
H5 C2 H6 109.676 H5 C2 H7 109.676
H6 C2 H7 106.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability