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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-23.790999
Energy at 298.15K-23.795395
HF Energy-23.790999
Nuclear repulsion energy36.754459
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 3186 3186 27.32      
2 A1 1521 1521 0.44      
3 A1 1159 1159 3.21      
4 A1 1082 1082 5.25      
5 A1 609 609 29.36      
6 A2 3281 3281 0.00      
7 A2 1213 1213 0.00      
8 A2 902 902 0.00      
9 B1 3298 3298 24.57      
10 B1 937 937 9.33      
11 B1 861 861 4.40      
12 B2 3177 3177 27.90      
13 B2 1488 1488 5.82      
14 B2 1114 1114 73.76      
15 B2 611 611 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 12218.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12218.9 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
0.71787 0.32497 0.24601

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 0.912
C2 0.000 0.751 -0.847
C3 0.000 -0.751 -0.847
H4 -0.921 1.273 -1.109
H5 0.921 1.273 -1.109
H6 0.921 -1.273 -1.109
H7 -0.921 -1.273 -1.109

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.91271.91272.55982.55982.55982.5598
C21.91271.50191.09021.09022.23872.2387
C31.91271.50192.23872.23871.09021.0902
H42.55981.09022.23871.84123.14172.5457
H52.55981.09022.23871.84122.54573.1417
H62.55982.23871.09023.14172.54571.8412
H72.55982.23871.09022.54573.14171.8412

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.882 S1 C2 H4 114.138
S1 C2 H5 114.138 S1 C3 C2 66.882
S1 C3 H6 114.138 S1 C3 H7 114.138
C2 S1 C3 46.235 C2 C3 H6 118.601
C2 C3 H7 118.601 C3 C2 H4 118.601
C3 C2 H5 118.601 H4 C2 H5 115.227
H6 C3 H7 115.227
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 -0.052      
2 C -0.406      
3 C -0.406      
4 H 0.216      
5 H 0.216      
6 H 0.216      
7 H 0.216      


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 -2.608 2.608
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.340 0.000 0.000
y 0.000 -23.515 0.000
z 0.000 0.000 -25.869
Traceless
 xyz
x -0.648 0.000 0.000
y 0.000 2.089 0.000
z 0.000 0.000 -1.441
Polar
3z2-r2-2.883
x2-y2-1.824
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.004 0.000 0.000
y 0.000 5.162 0.000
z 0.000 0.000 7.181


<r2> (average value of r2) Å2
<r2> 45.588
(<r2>)1/2 6.752