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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-476.508175
Energy at 298.15K-476.511916
HF Energy-476.508175
Nuclear repulsion energy91.989567
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3088 3070 6.13      
2 A' 2982 2965 30.69      
3 A' 2947 2930 3.26      
4 A' 1404 1396 8.99      
5 A' 1316 1308 84.29      
6 A' 1306 1298 5.83      
7 A' 1142 1136 34.58      
8 A' 1037 1031 7.13      
9 A' 816 811 1.82      
10 A' 383 381 2.18      
11 A" 3008 2991 3.67      
12 A" 1385 1377 10.08      
13 A" 985 979 1.59      
14 A" 736 732 12.77      
15 A" 172 171 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 11353.4 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 11287.5 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 PBEPBE/cc-pVDZ
ABC
1.61154 0.18781 0.17369

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.627 0.000
C2 -1.491 0.728 0.000
S3 0.878 -0.756 0.000
H4 0.530 1.606 0.000
H5 -1.974 -0.267 0.000
H6 -1.829 1.311 0.886
H7 -1.829 1.311 -0.886

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49401.63821.11272.16662.14442.1444
C21.49402.79482.20321.10561.11331.1133
S31.63822.79482.38682.89313.51923.5192
H41.11272.20322.38683.12632.53752.5375
H52.16661.10562.89313.12631.81501.8150
H62.14441.11333.51922.53751.81501.7719
H72.14441.11333.51922.53751.81501.7719

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 112.040 C1 C2 H6 109.801
C1 C2 H7 109.801 C2 C1 S3 126.263
C2 C1 H4 114.595 S3 C1 H4 119.141
H5 C2 H6 109.765 H5 C2 H7 109.765
H6 C2 H7 105.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.117      
2 C -0.019      
3 S -0.105      
4 H 0.058      
5 H 0.053      
6 H 0.065      
7 H 0.065      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.625 1.803 0.000 2.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.077 -0.731 0.000
y -0.731 -24.970 0.000
z 0.000 0.000 -25.727
Traceless
 xyz
x -0.728 -0.731 0.000
y -0.731 0.932 0.000
z 0.000 0.000 -0.204
Polar
3z2-r2-0.407
x2-y2-1.107
xy-0.731
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.718 -2.071 0.000
y -2.071 6.848 0.000
z 0.000 0.000 3.544


<r2> (average value of r2) Å2
<r2> 74.850
(<r2>)1/2 8.652