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: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-476.573075
Energy at 298.15K-476.576880
HF Energy-476.437494
Nuclear repulsion energy92.672270
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 B2PLYP/6-311G*
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' 3168 3168 11.84      
2 A' 3106 3106 27.32      
3 A' 3045 3045 5.77      
4 A' 1514 1514 4.64      
5 A' 1421 1421 22.81      
6 A' 1407 1407 57.45      
7 A' 1177 1177 39.67      
8 A' 1102 1102 7.85      
9 A' 838 838 0.45      
10 A' 402 402 0.96      
11 A" 3099 3099 10.91      
12 A" 1503 1503 13.10      
13 A" 1062 1062 4.86      
14 A" 776 776 20.25      
15 A" 163 163 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 11891.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11891.1 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 B2PLYP/6-311G*
ABC
1.64354 0.18975 0.17560

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.492 0.718 0.000
S3 0.878 -0.745 0.000
H4 0.523 1.581 0.000
H5 -1.959 -0.265 0.000
H6 -1.828 1.281 0.877
H7 -1.828 1.281 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49481.62411.09212.15032.13162.1316
C21.49482.78452.19131.08831.09501.0950
S31.62412.78452.35262.87693.49183.4918
H41.09212.19132.35263.09272.52612.5261
H52.15031.08832.87693.09271.78251.7825
H62.13161.09503.49182.52611.78251.7536
H72.13161.09503.49182.52611.78251.7536

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.734 C1 C2 H6 109.825
C1 C2 H7 109.825 C2 C1 S3 126.398
C2 C1 H4 114.894 S3 C1 H4 118.708
H5 C2 H6 109.457 H5 C2 H7 109.457
H6 C2 H7 106.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.320      
2 C -0.631      
3 S -0.010      
4 H 0.236      
5 H 0.250      
6 H 0.238      
7 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.666 1.857 0.000 2.495
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.257 -0.604 0.000
y -0.604 -25.816 0.000
z 0.000 0.000 -26.474
Traceless
 xyz
x -1.112 -0.604 0.000
y -0.604 1.049 0.000
z 0.000 0.000 0.062
Polar
3z2-r20.125
x2-y2-1.441
xy-0.604
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.558 -2.135 0.000
y -2.135 6.837 0.000
z 0.000 0.000 3.492


<r2> (average value of r2) Å2
<r2> 74.706
(<r2>)1/2 8.643