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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCSD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCSD/6-311G*
 hartrees
Energy at 0K-476.024405
Energy at 298.15K-476.028215
HF Energy-475.588324
Nuclear repulsion energy92.587241
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 CCSD/6-311G*
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' 3155 3008 11.69      
2 A' 3106 2962 21.12      
3 A' 3035 2894 8.23      
4 A' 1518 1448 4.56      
5 A' 1439 1372 33.25      
6 A' 1422 1356 34.71      
7 A' 1197 1141 26.62      
8 A' 1111 1059 4.06      
9 A' 850 810 0.46      
10 A' 405 386 0.76      
11 A" 3095 2951 12.06      
12 A" 1503 1433 12.31      
13 A" 1069 1019 5.43      
14 A" 775 739 20.63      
15 A" 159 151 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 11918.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 11364.6 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 CCSD/6-311G*
ABC
1.62930 0.18966 0.17543

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.500 0.708 0.000
S3 0.882 -0.738 0.000
H4 0.519 1.586 0.000
H5 -1.955 -0.285 0.000
H6 -1.841 1.266 0.882
H7 -1.841 1.266 -0.882

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50201.62141.09512.15542.14062.1406
C21.50202.78642.20141.09231.09821.0982
S31.62142.78642.35292.87353.49453.4945
H41.09512.20142.35293.10222.53982.5398
H52.15541.09232.87353.10221.78781.7878
H62.14061.09823.49452.53981.78781.7639
H72.14061.09823.49452.53981.78781.7639

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.386 C1 C2 H6 109.848
C1 C2 H7 109.848 C2 C1 S3 126.239
C2 C1 H4 115.015 S3 C1 H4 118.746
H5 C2 H6 109.402 H5 C2 H7 109.402
H6 C2 H7 106.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability