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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-475.994356
Energy at 298.15K-475.998205
HF Energy-475.558137
Nuclear repulsion energy92.912510
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' 3236 3034 10.98      
2 A' 3184 2985 18.69      
3 A' 3108 2914 8.47      
4 A' 1546 1450 3.12      
5 A' 1467 1375 31.90      
6 A' 1447 1357 20.22      
7 A' 1224 1148 15.70      
8 A' 1125 1055 1.05      
9 A' 866 812 2.01      
10 A' 407 382 1.25      
11 A" 3178 2979 12.59      
12 A" 1536 1440 7.49      
13 A" 1088 1020 4.92      
14 A" 785 736 14.77      
15 A" 172 161 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 12184.3 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 11424.0 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
1.63864 0.19097 0.17661

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 0.621 0.000
C2 -1.497 0.701 0.000
S3 0.881 -0.734 0.000
H4 0.508 1.584 0.000
H5 -1.944 -0.289 0.000
H6 -1.839 1.254 0.878
H7 -1.839 1.254 -0.878

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49921.61581.08882.14682.13392.1339
C21.49922.77742.19061.08681.09231.0923
S31.61582.77742.34732.86023.48133.4813
H41.08882.19062.34733.08582.52742.5274
H52.14681.08682.86023.08581.77851.7785
H62.13391.09233.48132.52741.77851.7560
H72.13391.09233.48132.52741.77851.7560

picture of Thioacetaldehyde state 1 conformation 1
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