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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-476.706888
Energy at 298.15K-476.710677
HF Energy-476.706888
Nuclear repulsion energy92.700529
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 B3PW91/6-31G*
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' 3177 3039 7.77      
2 A' 3102 2968 23.70      
3 A' 3037 2906 3.23      
4 A' 1503 1438 4.60      
5 A' 1411 1350 46.21      
6 A' 1399 1339 45.02      
7 A' 1183 1132 41.90      
8 A' 1095 1048 9.28      
9 A' 844 808 0.72      
10 A' 397 380 1.92      
11 A" 3094 2960 6.37      
12 A" 1491 1426 12.06      
13 A" 1051 1006 2.13      
14 A" 772 738 16.86      
15 A" 165 157 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 11860.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11347.0 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 B3PW91/6-31G*
ABC
1.64442 0.19008 0.17592

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.620 0.000
C2 -1.487 0.720 0.000
S3 0.876 -0.746 0.000
H4 0.521 1.585 0.000
H5 -1.962 -0.264 0.000
H6 -1.822 1.290 0.879
H7 -1.822 1.290 -0.879

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49061.62311.09622.15182.13082.1308
C21.49062.78072.18641.09191.09951.0995
S31.62312.78072.35822.87813.49213.4921
H41.09622.18642.35823.09522.51952.5195
H52.15181.09192.87813.09521.79011.7901
H62.13081.09953.49212.51951.79011.7571
H72.13081.09953.49212.51951.79011.7571

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.939 C1 C2 H6 109.783
C1 C2 H7 109.783 C2 C1 S3 126.464
C2 C1 H4 114.538 S3 C1 H4 118.998
H5 C2 H6 109.545 H5 C2 H7 109.545
H6 C2 H7 106.076
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.209      
2 C -0.537      
3 S -0.074      
4 H 0.205      
5 H 0.212      
6 H 0.202      
7 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.784 2.017 0.000 2.692
CHELPG        
AIM        
ESP -1.753 2.102 0.000 2.737


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.126 -0.557 0.000
y -0.557 -24.887 0.000
z 0.000 0.000 -25.672
Traceless
 xyz
x -0.846 -0.557 0.000
y -0.557 1.012 0.000
z 0.000 0.000 -0.165
Polar
3z2-r2-0.331
x2-y2-1.239
xy-0.557
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.236 -1.996 0.000
y -1.996 6.563 0.000
z 0.000 0.000 3.445


<r2> (average value of r2) Å2
<r2> 74.044
(<r2>)1/2 8.605