return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCD/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 CCD/Def2TZVPP
 hartrees
Energy at 0K-476.149901
Energy at 298.15K-476.153738
HF Energy-475.612097
Nuclear repulsion energy93.235424
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 CCD/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' 3177 3177 7.69      
2 A' 3127 3127 14.80      
3 A' 3055 3055 6.36      
4 A' 1507 1507 5.65      
5 A' 1424 1424 36.24      
6 A' 1411 1411 22.78      
7 A' 1202 1202 21.59      
8 A' 1102 1102 1.93      
9 A' 854 854 2.05      
10 A' 399 399 1.74      
11 A" 3115 3115 7.81      
12 A" 1498 1498 8.14      
13 A" 1069 1069 5.93      
14 A" 779 779 13.14      
15 A" 176 176 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 11946.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11946.7 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 CCD/Def2TZVPP
ABC
1.64161 0.19264 0.17805

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.618 0.000
C2 -1.494 0.692 0.000
S3 0.879 -0.728 0.000
H4 0.507 1.582 0.000
H5 -1.938 -0.299 0.000
H6 -1.836 1.247 0.877
H7 -1.836 1.247 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49551.60771.08822.14402.12912.1291
C21.49552.76532.18911.08631.09221.0922
S31.60772.76532.33902.84933.46953.4695
H41.08822.18912.33903.08412.52322.5232
H52.14401.08632.84933.08411.78011.7801
H62.12911.09223.46952.52321.78011.7532
H72.12911.09223.46952.52321.78011.7532

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.294 C1 C2 H6 109.742
C1 C2 H7 109.742 C2 C1 S3 125.981
C2 C1 H4 114.914 S3 C1 H4 119.106
H5 C2 H6 109.597 H5 C2 H7 109.597
H6 C2 H7 106.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability