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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP2=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 MP2=FULL/3-21G
 hartrees
Energy at 0K-473.420044
Energy at 298.15K-473.423877
HF Energy-473.165966
Nuclear repulsion energy91.042359
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/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' 3189 3045 17.20      
2 A' 3172 3029 2.40      
3 A' 3070 2931 2.81      
4 A' 1578 1507 8.97      
5 A' 1486 1419 11.73      
6 A' 1434 1369 26.58      
7 A' 1147 1095 10.72      
8 A' 1134 1083 8.94      
9 A' 814 777 3.81      
10 A' 406 387 0.99      
11 A" 3126 2984 8.16      
12 A" 1575 1504 11.11      
13 A" 1108 1058 3.75      
14 A" 793 757 30.60      
15 A" 168 161 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 12099.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 11553.0 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 MP2=FULL/3-21G
ABC
1.57346 0.18354 0.16959

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.656 0.000
C2 -1.504 0.746 0.000
S3 0.883 -0.773 0.000
H4 0.538 1.602 0.000
H5 -1.951 -0.251 0.000
H6 -1.847 1.299 0.885
H7 -1.847 1.299 -0.885

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50721.67941.08852.15112.14632.1463
C21.50722.82982.21431.09231.09801.0980
S31.67942.82982.39992.88163.53943.5394
H41.08852.21432.39993.10262.56102.5610
H52.15111.09232.88163.10261.78781.7878
H62.14631.09803.53942.56101.78781.7692
H72.14631.09803.53942.56101.78781.7692

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.678 C1 C2 H6 109.953
C1 C2 H7 109.953 C2 C1 S3 125.164
C2 C1 H4 116.161 S3 C1 H4 118.675
H5 C2 H6 109.421 H5 C2 H7 109.421
H6 C2 H7 107.348
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability