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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: HF/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 HF/STO-3G
 hartrees
Energy at 0K-470.259493
Energy at 298.15K-470.263339
HF Energy-470.259493
Nuclear repulsion energy93.383540
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 HF/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' 3752 3064 0.83      
2 A' 3602 2941 15.12      
3 A' 3550 2898 0.32      
4 A' 1823 1488 1.21      
5 A' 1725 1408 9.54      
6 A' 1694 1383 37.11      
7 A' 1406 1148 15.00      
8 A' 1270 1037 6.94      
9 A' 992 810 0.26      
10 A' 438 358 1.88      
11 A" 3715 3033 0.24      
12 A" 1816 1482 3.01      
13 A" 1239 1012 0.04      
14 A" 864 706 5.84      
15 A" 175 143 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 14029.8 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 11455.3 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 HF/STO-3G
ABC
1.64436 0.19227 0.17777

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.603 0.000
C2 -1.528 0.642 0.000
S3 0.904 -0.692 0.000
H4 0.427 1.609 0.000
H5 -1.950 -0.358 0.000
H6 -1.891 1.174 0.877
H7 -1.891 1.174 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.52801.57931.09312.17432.16132.1613
C21.52802.77342.18111.08551.08871.0887
S31.57932.77342.34992.87403.47353.4735
H41.09312.18112.34993.08592.51652.5165
H52.17431.08552.87403.08591.76681.7668
H62.16131.08873.47352.51651.76681.7545
H72.16131.08873.47352.51651.76681.7545

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.474 C1 C2 H6 110.242
C1 C2 H7 110.242 C2 C1 S3 126.378
C2 C1 H4 111.562 S3 C1 H4 122.061
H5 C2 H6 108.701 H5 C2 H7 108.701
H6 C2 H7 107.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C -0.193      
3 S 0.089      
4 H 0.053      
5 H 0.068      
6 H 0.068      
7 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.772 0.886 0.000 1.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.094 0.123 0.000
y 0.123 -23.432 0.000
z 0.000 0.000 -22.536
Traceless
 xyz
x -1.109 0.123 0.000
y 0.123 -0.117 0.000
z 0.000 0.000 1.226
Polar
3z2-r22.453
x2-y2-0.661
xy0.123
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.921 -1.476 0.000
y -1.476 3.409 0.000
z 0.000 0.000 1.423


<r2> (average value of r2) Å2
<r2> 72.132
(<r2>)1/2 8.493