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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: wB97X-D/CEP-121G

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-121G
 hartrees
Energy at 0K-23.796665
Energy at 298.15K-23.801081
HF Energy-23.796665
Nuclear repulsion energy36.870902
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-121G
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 3140 3140 20.57      
2 A1 1516 1516 1.23      
3 A1 1154 1154 4.10      
4 A1 1078 1078 4.05      
5 A1 603 603 30.31      
6 A2 3242 3242 0.00      
7 A2 1215 1215 0.00      
8 A2 907 907 0.00      
9 B1 3259 3259 16.07      
10 B1 932 932 3.91      
11 B1 864 864 1.33      
12 B2 3129 3129 19.88      
13 B2 1487 1487 5.94      
14 B2 1106 1106 65.81      
15 B2 610 610 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 12120.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12120.8 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-121G
ABC
0.72489 0.32547 0.24696

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.912
C2 0.000 0.747 -0.847
C3 0.000 -0.747 -0.847
H4 -0.918 1.266 -1.106
H5 0.918 1.266 -1.106
H6 0.918 -1.266 -1.106
H7 -0.918 -1.266 -1.106

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.91081.91082.55232.55232.55232.5523
C21.91081.49471.08521.08522.22732.2273
C31.91081.49472.22732.22731.08521.0852
H42.55231.08522.22731.83523.12642.5311
H52.55231.08522.22731.83522.53113.1264
H62.55232.22731.08523.12642.53111.8352
H72.55232.22731.08522.53113.12641.8352

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.976 S1 C2 H4 113.978
S1 C2 H5 113.978 S1 C3 C2 66.976
S1 C3 H6 113.978 S1 C3 H7 113.978
C2 S1 C3 46.047 C2 C3 H6 118.526
C2 C3 H7 118.526 C3 C2 H4 118.526
C3 C2 H5 118.526 H4 C2 H5 115.467
H6 C3 H7 115.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.082      
2 C -0.464      
3 C -0.464      
4 H 0.211      
5 H 0.211      
6 H 0.211      
7 H 0.211      


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 -2.538 2.538
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.512 0.000 0.000
y 0.000 -23.594 0.000
z 0.000 0.000 -25.802
Traceless
 xyz
x -0.814 0.000 0.000
y 0.000 2.063 0.000
z 0.000 0.000 -1.249
Polar
3z2-r2-2.498
x2-y2-1.917
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.144 0.000 0.000
y 0.000 5.354 0.000
z 0.000 0.000 7.290


<r2> (average value of r2) Å2
<r2> 45.455
(<r2>)1/2 6.742