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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: PBEPBE/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-476.496930
Energy at 298.15K-476.500676
HF Energy-476.496930
Nuclear repulsion energy92.380027
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/6-31G(2df,p)
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' 3092 3060 5.89      
2 A' 2995 2964 23.24      
3 A' 2953 2922 2.01      
4 A' 1427 1412 4.78      
5 A' 1327 1313 84.52      
6 A' 1325 1311 9.25      
7 A' 1145 1133 38.88      
8 A' 1046 1035 7.24      
9 A' 815 807 1.46      
10 A' 381 377 2.15      
11 A" 3009 2978 3.48      
12 A" 1415 1400 8.45      
13 A" 1001 990 1.77      
14 A" 740 733 11.95      
15 A" 174 172 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 11421.9 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 11304.3 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 PBEPBE/6-31G(2df,p)
ABC
1.62987 0.18905 0.17490

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.623 0.000
C2 -1.490 0.721 0.000
S3 0.878 -0.749 0.000
H4 0.523 1.595 0.000
H5 -1.968 -0.268 0.000
H6 -1.828 1.299 0.881
H7 -1.828 1.299 -0.881

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49331.62861.10412.15982.13872.1387
C21.49332.78712.19421.09841.10641.1064
S31.62862.78712.37142.88573.50583.5058
H41.10412.19422.37143.11012.52722.5272
H52.15981.09842.88573.11011.80321.8032
H62.13871.10643.50582.52721.80321.7619
H72.13871.10643.50582.52721.80321.7619

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.995 C1 C2 H6 109.811
C1 C2 H7 109.811 C2 C1 S3 126.389
C2 C1 H4 114.462 S3 C1 H4 119.149
H5 C2 H6 109.743 H5 C2 H7 109.743
H6 C2 H7 105.536
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.035      
2 C -0.441      
3 S -0.219      
4 H 0.141      
5 H 0.163      
6 H 0.160      
7 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.751 1.938 0.000 2.612
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.033 -0.640 0.000
y -0.640 -24.877 0.000
z 0.000 0.000 -25.671
Traceless
 xyz
x -0.759 -0.640 0.000
y -0.640 0.975 0.000
z 0.000 0.000 -0.216
Polar
3z2-r2-0.432
x2-y2-1.156
xy-0.640
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.977 -1.867 0.000
y -1.867 6.879 0.000
z 0.000 0.000 4.054


<r2> (average value of r2) Å2
<r2> 74.387
(<r2>)1/2 8.625