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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-23.222096
Energy at 298.15K-23.225982
HF Energy-23.222096
Nuclear repulsion energy35.528987
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/CEP-121G*
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' 3313 2993 22.80      
2 A' 3282 2965 18.77      
3 A' 3179 2872 16.74      
4 A' 1613 1458 4.64      
5 A' 1536 1388 22.16      
6 A' 1499 1355 56.78      
7 A' 1233 1114 51.72      
8 A' 1167 1054 15.42      
9 A' 880 795 1.66      
10 A' 413 373 2.75      
11 A" 3237 2924 25.64      
12 A" 1605 1450 9.71      
13 A" 1147 1036 7.15      
14 A" 832 752 10.66      
15 A" 166 150 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 12550.9 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 11338.5 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/CEP-121G*
ABC
1.64832 0.18961 0.17552

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.482 0.000
C2 -1.172 -0.465 0.000
S3 1.565 0.074 0.000
H4 -0.268 1.532 0.000
H5 -0.850 -1.498 0.000
H6 -1.790 -0.273 0.876
H7 -1.790 -0.273 -0.876

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50691.61681.08392.15452.13072.1307
C21.50692.78972.19211.08181.08881.0888
S31.61682.78972.34192.88173.48433.4843
H41.08392.19212.34193.08522.51762.5176
H52.15451.08182.88173.08521.77511.7751
H62.13071.08883.48432.51761.77511.7517
H72.13071.08883.48432.51761.77511.7517

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.609 C1 C2 H6 109.279
C1 C2 H7 109.279 C2 C1 S3 126.482
C2 C1 H4 114.588 S3 C1 H4 118.931
H5 C2 H6 109.725 H5 C2 H7 109.725
H6 C2 H7 107.116
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.042      
2 C -0.477      
3 S -0.248      
4 H 0.204      
5 H 0.201      
6 H 0.182      
7 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.911 0.362 0.000 2.933
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.480 -0.838 0.000
y -0.838 -25.780 0.000
z 0.000 0.000 -25.630
Traceless
 xyz
x -1.775 -0.838 0.000
y -0.838 0.775 0.000
z 0.000 0.000 1.000
Polar
3z2-r22.000
x2-y2-1.700
xy-0.838
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.836 -0.542 0.000
y -0.542 4.745 0.000
z 0.000 0.000 3.836


<r2> (average value of r2) Å2
<r2> 51.914
(<r2>)1/2 7.205