return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-470.419614
Energy at 298.15K-470.423302
HF Energy-470.255487
Nuclear repulsion energy91.322932
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=FULL/STO-3G
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' 3548 3154 2.00      
2 A' 3371 2996 16.17      
3 A' 3356 2983 1.13      
4 A' 1725 1533 1.37      
5 A' 1600 1422 0.27      
6 A' 1545 1373 26.48      
7 A' 1276 1134 0.90      
8 A' 1183 1051 5.06      
9 A' 901 801 2.68      
10 A' 404 360 0.58      
11 A" 3525 3134 1.72      
12 A" 1721 1530 1.88      
13 A" 1151 1023 0.01      
14 A" 768 683 5.81      
15 A" 158 141 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 13116.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 11658.9 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=FULL/STO-3G
ABC
1.57042 0.18420 0.17019

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.626 0.000
C2 -1.551 0.670 0.000
S3 0.917 -0.718 0.000
H4 0.450 1.643 0.000
H5 -1.982 -0.345 0.000
H6 -1.921 1.210 0.891
H7 -1.921 1.210 -0.891

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.55121.62741.11262.20732.19652.1965
C21.55122.83192.22441.10361.10561.1056
S31.62742.83192.40782.92363.54513.5451
H41.11262.22442.40783.14162.56932.5693
H52.20731.10362.92363.14161.79341.7934
H62.19651.10563.54512.56931.79341.7825
H72.19651.10563.54512.56931.79341.7825

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.381 C1 C2 H6 110.407
C1 C2 H7 110.407 C2 C1 S3 125.959
C2 C1 H4 112.195 S3 C1 H4 121.847
H5 C2 H6 108.546 H5 C2 H7 108.546
H6 C2 H7 107.438
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability