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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-476.058895
Energy at 298.15K-476.062708
HF Energy-475.597566
Nuclear repulsion energy92.642367
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/TZVP
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' 3178 3033 12.55      
2 A' 3135 2992 17.60      
3 A' 3057 2917 10.00      
4 A' 1511 1443 4.91      
5 A' 1435 1370 20.43      
6 A' 1416 1351 32.30      
7 A' 1185 1131 24.24      
8 A' 1107 1057 2.63      
9 A' 843 805 0.69      
10 A' 401 383 1.31      
11 A" 3117 2975 12.28      
12 A" 1493 1425 8.14      
13 A" 1067 1019 6.97      
14 A" 774 739 11.87      
15 A" 160 153 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 11940.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 11395.8 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/TZVP
ABC
1.62671 0.19007 0.17572

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 0.000
C2 -1.496 0.709 0.000
S3 0.880 -0.741 0.000
H4 0.514 1.588 0.000
H5 -1.947 -0.281 0.000
H6 -1.834 1.264 0.880
H7 -1.834 1.264 -0.880

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49811.62591.08982.14822.13212.1321
C21.49812.78322.19331.08841.09411.0941
S31.62592.78322.35682.86383.48723.4872
H41.08982.19332.35683.09002.52872.5287
H52.14821.08842.86383.09001.78191.7819
H62.13211.09413.48722.52871.78191.7604
H72.13211.09413.48722.52871.78191.7604

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.323 C1 C2 H6 109.693
C1 C2 H7 109.693 C2 C1 S3 125.926
C2 C1 H4 114.975 S3 C1 H4 119.099
H5 C2 H6 109.457 H5 C2 H7 109.457
H6 C2 H7 107.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability