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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-476.788082
Energy at 298.15K-476.791871
HF Energy-476.788082
Nuclear repulsion energy92.471804
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 B3LYP/6-31G*
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' 3162 3036 9.38      
2 A' 3093 2970 24.54      
3 A' 3027 2907 4.19      
4 A' 1507 1447 3.52      
5 A' 1416 1359 18.63      
6 A' 1401 1345 64.01      
7 A' 1169 1123 42.34      
8 A' 1096 1052 8.98      
9 A' 836 803 0.52      
10 A' 397 381 1.98      
11 A" 3074 2952 8.78      
12 A" 1498 1438 10.24      
13 A" 1056 1014 2.05      
14 A" 772 742 14.55      
15 A" 166 160 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 11834.6 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 11364.7 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 B3LYP/6-31G*
ABC
1.64125 0.18889 0.17486

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.492 0.723 0.000
S3 0.878 -0.749 0.000
H4 0.519 1.587 0.000
H5 -1.967 -0.260 0.000
H6 -1.827 1.293 0.879
H7 -1.827 1.293 -0.879

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49541.62771.09572.15592.13532.1353
C21.49542.78992.18861.09181.09971.0997
S31.62772.78992.36282.88723.50103.5010
H41.09572.18862.36283.09712.52212.5221
H52.15591.09182.88723.09711.78991.7899
H62.13531.09973.50102.52211.78991.7578
H72.13531.09973.50102.52211.78991.7578

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.933 C1 C2 H6 109.798
C1 C2 H7 109.798 C2 C1 S3 126.532
C2 C1 H4 114.396 S3 C1 H4 119.072
H5 C2 H6 109.514 H5 C2 H7 109.514
H6 C2 H7 106.114
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.168      
2 C -0.469      
3 S -0.088      
4 H 0.180      
5 H 0.189      
6 H 0.178      
7 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.751 2.001 0.000 2.659
CHELPG -1.684 2.076 0.000 2.673
AIM -0.874 1.512 0.000 1.746
ESP -1.723 2.088 0.000 2.707


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.319 -0.534 0.000
y -0.534 -25.074 0.000
z 0.000 0.000 -25.750
Traceless
 xyz
x -0.907 -0.534 0.000
y -0.534 0.960 0.000
z 0.000 0.000 -0.053
Polar
3z2-r2-0.107
x2-y2-1.245
xy-0.534
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.226 -1.994 0.000
y -1.994 6.555 0.000
z 0.000 0.000 3.439


<r2> (average value of r2) Å2
<r2> 74.467
(<r2>)1/2 8.629