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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-475.962823
Energy at 298.15K-475.966665
HF Energy-475.558049
Nuclear repulsion energy92.866913
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 MP2/6-31G**
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' 3252 3046 7.14      
2 A' 3178 2976 21.10      
3 A' 3117 2919 5.06      
4 A' 1539 1441 3.64      
5 A' 1449 1357 31.93      
6 A' 1432 1341 22.69      
7 A' 1217 1140 15.05      
8 A' 1119 1048 1.32      
9 A' 859 804 2.95      
10 A' 406 381 1.09      
11 A" 3197 2994 8.22      
12 A" 1532 1434 8.39      
13 A" 1080 1012 4.56      
14 A" 783 734 15.50      
15 A" 172 161 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 12165.9 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 11393.3 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 MP2/6-31G**
ABC
1.63690 0.19092 0.17653

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.624 0.000
C2 -1.493 0.708 0.000
S3 0.878 -0.738 0.000
H4 0.513 1.585 0.000
H5 -1.942 -0.282 0.000
H6 -1.832 1.262 0.877
H7 -1.832 1.262 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49511.62051.08992.14272.12922.1292
C21.49512.77702.18941.08651.09171.0917
S31.62052.77702.35202.85703.48083.4808
H41.08992.18942.35203.08432.52462.5246
H52.14271.08652.85703.08431.77881.7788
H62.12921.09173.48082.52461.77881.7542
H72.12921.09173.48082.52461.77881.7542

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.213 C1 C2 H6 109.808
C1 C2 H7 109.808 C2 C1 S3 126.031
C2 C1 H4 114.864 S3 C1 H4 119.104
H5 C2 H6 109.500 H5 C2 H7 109.500
H6 C2 H7 106.915
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability