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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCD/6-31G

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/6-31G
 hartrees
Energy at 0K-475.755529
Energy at 298.15K-475.759356
HF Energy-475.487064
Nuclear repulsion energy90.857330
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/6-31G
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' 3139 3012 27.44      
2 A' 3119 2993 1.05      
3 A' 3008 2886 10.28      
4 A' 1539 1476 6.94      
5 A' 1469 1410 10.36      
6 A' 1440 1382 27.92      
7 A' 1188 1140 14.48      
8 A' 1127 1081 2.73      
9 A' 837 803 2.65      
10 A' 407 390 1.07      
11 A" 3066 2942 16.34      
12 A" 1528 1467 10.90      
13 A" 1093 1049 5.65      
14 A" 782 750 26.37      
15 A" 165 159 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 11953.4 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 11469.3 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/6-31G
ABC
1.58518 0.18223 0.16866

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.648 0.000
C2 -1.507 0.755 0.000
S3 0.885 -0.775 0.000
H4 0.546 1.598 0.000
H5 -1.974 -0.240 0.000
H6 -1.850 1.314 0.889
H7 -1.850 1.314 -0.889

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.51051.67611.09572.16492.15762.1576
C21.51052.83972.21941.09931.10501.1050
S31.67612.83972.39702.90963.55473.5547
H41.09572.21942.39703.11952.57142.5714
H52.16491.09932.90963.11951.79481.7948
H62.15761.10503.55472.57141.79481.7787
H72.15761.10503.55472.57141.79481.7787

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.117 C1 C2 H6 110.198
C1 C2 H7 110.198 C2 C1 S3 125.953
C2 C1 H4 115.852 S3 C1 H4 118.196
H5 C2 H6 109.019 H5 C2 H7 109.019
H6 C2 H7 107.194
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability