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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: QCISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.148670
Energy at 298.15K-476.152491
HF Energy-475.609555
Nuclear repulsion energy92.923656
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 QCISD/6-311+G(3df,2p)
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' 3163 3017 7.26      
2 A' 3107 2963 15.40      
3 A' 3043 2902 6.40      
4 A' 1506 1436 5.53      
5 A' 1421 1356 18.61      
6 A' 1398 1333 48.01      
7 A' 1182 1128 28.73      
8 A' 1096 1045 5.07      
9 A' 844 805 0.47      
10 A' 396 378 1.67      
11 A" 3102 2958 7.54      
12 A" 1500 1430 7.60      
13 A" 1060 1011 5.22      
14 A" 772 736 12.99      
15 A" 171 163 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11880.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 11330.1 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 QCISD/6-311+G(3df,2p)
ABC
1.63502 0.19126 0.17681

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.495 0.702 0.000
S3 0.879 -0.735 0.000
H4 0.512 1.585 0.000
H5 -1.946 -0.287 0.000
H6 -1.833 1.259 0.878
H7 -1.833 1.259 -0.878

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49671.61671.09072.14822.12992.1299
C21.49672.77472.19251.08751.09351.0935
S31.61672.77472.34852.86073.47883.4788
H41.09072.19252.34853.09022.52512.5251
H52.14821.08752.86073.09021.78201.7820
H62.12991.09353.47882.52511.78201.7556
H72.12991.09353.47882.52511.78201.7556

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.475 C1 C2 H6 109.644
C1 C2 H7 109.644 C2 C1 S3 126.010
C2 C1 H4 114.943 S3 C1 H4 119.046
H5 C2 H6 109.587 H5 C2 H7 109.587
H6 C2 H7 106.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability