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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP3=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-473.619804
Energy at 298.15K-473.623653
HF Energy-473.274035
Nuclear repulsion energy92.466566
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 MP3=FULL/3-21G*
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' 3171 3171 10.53      
2 A' 3132 3132 12.40      
3 A' 3061 3061 4.06      
4 A' 1575 1575 5.48      
5 A' 1483 1483 10.33      
6 A' 1455 1455 37.64      
7 A' 1199 1199 24.30      
8 A' 1133 1133 0.74      
9 A' 846 846 2.63      
10 A' 414 414 1.22      
11 A" 3111 3111 9.52      
12 A" 1570 1570 10.88      
13 A" 1114 1114 2.61      
14 A" 797 797 22.31      
15 A" 166 166 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 12112.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12112.5 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 MP3=FULL/3-21G*
ABC
1.60045 0.18965 0.17514

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 0.000
C2 -1.517 0.682 0.000
S3 0.893 -0.724 0.000
H4 0.492 1.602 0.000
H5 -1.935 -0.328 0.000
H6 -1.870 1.227 0.886
H7 -1.870 1.227 -0.886

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.51791.61871.09192.15792.15442.1544
C21.51792.78962.20911.09301.09861.0986
S31.61872.78962.35962.85563.49573.4957
H41.09192.20912.35963.10052.54982.5498
H52.15791.09302.85563.10051.79071.7907
H62.15441.09863.49572.54981.79071.7728
H72.15441.09863.49572.54981.79071.7728

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.425 C1 C2 H6 109.809
C1 C2 H7 109.809 C2 C1 S3 125.551
C2 C1 H4 114.675 S3 C1 H4 119.773
H5 C2 H6 109.589 H5 C2 H7 109.589
H6 C2 H7 107.571
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability