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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: wB97X-D/STO-3G

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/STO-3G
 hartrees
Energy at 0K-471.414796
Energy at 298.15K-471.419321
HF Energy-471.414796
Nuclear repulsion energy100.970733
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/STO-3G
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 3402 3402 0.36      
2 A1 1662 1662 2.26      
3 A1 1266 1266 0.16      
4 A1 1154 1154 0.05      
5 A1 835 835 5.79      
6 A2 3538 3538 0.00      
7 A2 1281 1281 0.00      
8 A2 985 985 0.00      
9 B1 3545 3545 0.85      
10 B1 1063 1063 0.00      
11 B1 911 911 0.12      
12 B2 3395 3395 1.55      
13 B2 1639 1639 0.01      
14 B2 1215 1215 16.87      
15 B2 870 870 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 13379.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13379.7 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 wB97X-D/STO-3G
ABC
0.70981 0.36708 0.26790

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.858
C2 0.000 0.761 -0.775
C3 0.000 -0.761 -0.775
H4 -0.915 1.267 -1.107
H5 0.915 1.267 -1.107
H6 0.915 -1.267 -1.107
H7 -0.915 -1.267 -1.107

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80111.80112.51062.51062.51062.5106
C21.80111.52221.09711.09712.24982.2498
C31.80111.52222.24982.24981.09711.0971
H42.51061.09712.24981.82973.12592.5345
H52.51061.09712.24981.82972.53453.1259
H62.51062.24981.09713.12592.53451.8297
H72.51062.24981.09712.53453.12591.8297

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.004 S1 C2 H4 118.002
S1 C2 H5 118.002 S1 C3 C2 65.004
S1 C3 H6 118.002 S1 C3 H7 118.002
C2 S1 C3 49.992 C2 C3 H6 117.475
C2 C3 H7 117.475 C3 C2 H4 117.475
C3 C2 H5 117.475 H4 C2 H5 113.002
H6 C3 H7 113.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.125      
2 C -0.230      
3 C -0.230      
4 H 0.084      
5 H 0.084      
6 H 0.084      
7 H 0.084      


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 -0.675 0.675
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.113 0.000 0.000
y 0.000 -22.580 0.000
z 0.000 0.000 -23.975
Traceless
 xyz
x 0.164 0.000 0.000
y 0.000 0.964 0.000
z 0.000 0.000 -1.129
Polar
3z2-r2-2.257
x2-y2-0.533
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.630 0.000 0.000
y 0.000 2.609 0.000
z 0.000 0.000 2.996


<r2> (average value of r2) Å2
<r2> 55.102
(<r2>)1/2 7.423