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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-474.377104
Energy at 298.15K-474.380916
HF Energy-474.377104
Nuclear repulsion energy91.885668
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 mPW1PW91/3-21G
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' 3190 3045 7.29      
2 A' 3154 3011 8.86      
3 A' 3047 2908 0.40      
4 A' 1538 1468 8.01      
5 A' 1449 1383 22.01      
6 A' 1409 1345 59.00      
7 A' 1163 1111 38.38      
8 A' 1114 1063 30.91      
9 A' 833 795 0.27      
10 A' 403 385 2.05      
11 A" 3096 2956 3.06      
12 A" 1531 1461 17.97      
13 A" 1077 1028 1.38      
14 A" 796 760 32.31      
15 A" 159 152 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 11978.3 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 11434.4 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 mPW1PW91/3-21G
ABC
1.59807 0.18755 0.17323

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.647 0.000
C2 -1.485 0.737 0.000
S3 0.873 -0.766 0.000
H4 0.532 1.598 0.000
H5 -1.945 -0.252 0.000
H6 -1.823 1.303 0.880
H7 -1.823 1.303 -0.880

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48791.66041.09022.14212.12812.1281
C21.48792.79642.19321.09051.09931.0993
S31.66042.79642.38842.86413.51043.5104
H41.09022.19322.38843.09132.53142.5314
H52.14211.09052.86413.09131.79051.7905
H62.12811.09933.51042.53141.79051.7598
H72.12811.09933.51042.53141.79051.7598

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.430 C1 C2 H6 109.768
C1 C2 H7 109.768 C2 C1 S3 125.211
C2 C1 H4 115.716 S3 C1 H4 119.073
H5 C2 H6 109.701 H5 C2 H7 109.701
H6 C2 H7 106.343
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.535      
2 C -0.670      
3 S 0.167      
4 H 0.269      
5 H 0.259      
6 H 0.255      
7 H 0.255      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.894 2.195 0.000 2.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.392 -0.324 0.000
y -0.324 -25.298 0.000
z 0.000 0.000 -26.155
Traceless
 xyz
x -0.665 -0.324 0.000
y -0.324 0.975 0.000
z 0.000 0.000 -0.310
Polar
3z2-r2-0.620
x2-y2-1.094
xy-0.324
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.637 -2.170 0.000
y -2.170 6.269 0.000
z 0.000 0.000 2.962


<r2> (average value of r2) Å2
<r2> 75.061
(<r2>)1/2 8.664