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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: wB97X-D/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/CEP-31G*
 hartrees
Energy at 0K-23.839721
Energy at 298.15K-23.844170
HF Energy-23.839721
Nuclear repulsion energy37.394725
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 wB97X-D/CEP-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 A1 3167 3167 28.64      
2 A1 1519 1519 2.42      
3 A1 1157 1157 4.45      
4 A1 1052 1052 0.87      
5 A1 674 674 29.97      
6 A2 3247 3247 0.00      
7 A2 1188 1188 0.00      
8 A2 885 885 0.00      
9 B1 3263 3263 27.45      
10 B1 957 957 7.64      
11 B1 834 834 2.19      
12 B2 3162 3162 34.48      
13 B2 1474 1474 0.61      
14 B2 1073 1073 49.52      
15 B2 702 702 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 12176.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12176.5 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 wB97X-D/CEP-31G*
ABC
0.72036 0.35273 0.26206

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.874
C2 0.000 0.751 -0.804
C3 0.000 -0.751 -0.804
H4 -0.923 1.265 -1.083
H5 0.923 1.265 -1.083
H6 0.923 -1.265 -1.083
H7 -0.923 -1.265 -1.083

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83821.83822.50612.50612.50612.5061
C21.83821.50101.09271.09272.23412.2341
C31.83821.50102.23412.23411.09271.0927
H42.50611.09272.23411.84563.13152.5299
H52.50611.09272.23411.84562.52993.1315
H62.50612.23411.09273.13152.52991.8456
H72.50612.23411.09272.52993.13151.8456

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.903 S1 C2 H4 115.158
S1 C2 H5 115.158 S1 C3 C2 65.903
S1 C3 H6 115.158 S1 C3 H7 115.158
C2 S1 C3 48.194 C2 C3 H6 118.085
C2 C3 H7 118.085 C3 C2 H4 118.085
C3 C2 H5 118.085 H4 C2 H5 115.248
H6 C3 H7 115.248
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.201      
2 C -0.309      
3 C -0.309      
4 H 0.205      
5 H 0.205      
6 H 0.205      
7 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.221 2.221
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.033 0.000 0.000
y 0.000 -23.277 0.000
z 0.000 0.000 -25.182
Traceless
 xyz
x -0.803 0.000 0.000
y 0.000 1.831 0.000
z 0.000 0.000 -1.028
Polar
3z2-r2-2.055
x2-y2-1.756
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.494 0.000 0.000
y 0.000 5.260 0.000
z 0.000 0.000 6.744


<r2> (average value of r2) Å2
<r2> 44.060
(<r2>)1/2 6.638