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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-474.223014
Energy at 298.15K-474.226842
HF Energy-474.118843
Nuclear repulsion energy92.446689
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/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' 3180 3180 7.65      
2 A' 3117 3117 17.13      
3 A' 3058 3058 2.23      
4 A' 1561 1561 5.98      
5 A' 1468 1468 11.47      
6 A' 1428 1428 51.79      
7 A' 1164 1164 47.30      
8 A' 1127 1127 1.04      
9 A' 834 834 1.14      
10 A' 408 408 1.40      
11 A" 3106 3106 6.91      
12 A" 1559 1559 12.76      
13 A" 1099 1099 1.34      
14 A" 795 795 22.38      
15 A" 164 164 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 12033.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12033.6 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/3-21G*
ABC
1.61495 0.18928 0.17494

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 0.000
C2 -1.506 0.699 0.000
S3 0.887 -0.735 0.000
H4 0.500 1.597 0.000
H5 -1.944 -0.299 0.000
H6 -1.851 1.253 0.882
H7 -1.851 1.253 -0.882

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50821.62541.09132.15302.14412.1441
C21.50822.79012.19771.09001.09701.0970
S31.62542.79012.36442.86373.49673.4967
H41.09132.19772.36443.09282.53452.5345
H52.15301.09002.86373.09281.78751.7875
H62.14411.09703.49672.53451.78751.7643
H72.14411.09703.49672.53451.78751.7643

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.899 C1 C2 H6 109.771
C1 C2 H7 109.771 C2 C1 S3 125.806
C2 C1 H4 114.493 S3 C1 H4 119.701
H5 C2 H6 109.634 H5 C2 H7 109.634
H6 C2 H7 107.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.281      
2 C -0.614      
3 S -0.001      
4 H 0.223      
5 H 0.229      
6 H 0.222      
7 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.609 1.818 0.000 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.591 -0.558 0.000
y -0.558 -25.306 0.000
z 0.000 0.000 -26.102
Traceless
 xyz
x -0.886 -0.558 0.000
y -0.558 1.040 0.000
z 0.000 0.000 -0.154
Polar
3z2-r2-0.308
x2-y2-1.284
xy-0.558
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.715 -1.900 0.000
y -1.900 6.079 0.000
z 0.000 0.000 3.118


<r2> (average value of r2) Å2
<r2> 74.594
(<r2>)1/2 8.637