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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: wB97X-D/6-31G

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/6-31G
 hartrees
Energy at 0K-476.688032
Energy at 298.15K-476.692466
HF Energy-476.688032
Nuclear repulsion energy98.339312
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/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 A1 3207 3207 4.80      
2 A1 1544 1544 1.81      
3 A1 1171 1171 1.81      
4 A1 1099 1099 4.64      
5 A1 615 615 25.88      
6 A2 3297 3297 0.00      
7 A2 1239 1239 0.00      
8 A2 913 913 0.00      
9 B1 3314 3314 4.06      
10 B1 944 944 4.51      
11 B1 880 880 1.78      
12 B2 3201 3201 6.08      
13 B2 1519 1519 6.71      
14 B2 1136 1136 45.91      
15 B2 631 631 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 12355.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12355.5 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/6-31G
ABC
0.73695 0.32671 0.24891

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.910
C2 0.000 0.739 -0.846
C3 0.000 -0.739 -0.846
H4 -0.915 1.259 -1.103
H5 0.915 1.259 -1.103
H6 0.915 -1.259 -1.103
H7 -0.915 -1.259 -1.103

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.90481.90482.54452.54452.54452.5445
C21.90481.47821.08331.08332.21262.2126
C31.90481.47822.21262.21261.08331.0833
H42.54451.08332.21261.82983.11262.5180
H52.54451.08332.21261.82982.51803.1126
H62.54452.21261.08333.11262.51801.8298
H72.54452.21261.08332.51803.11261.8298

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 67.169 S1 C2 H4 113.907
S1 C2 H5 113.907 S1 C3 C2 67.169
S1 C3 H6 113.907 S1 C3 H7 113.907
C2 S1 C3 45.663 C2 C3 H6 118.678
C2 C3 H7 118.678 C3 C2 H4 118.678
C3 C2 H5 118.678 H4 C2 H5 115.242
H6 C3 H7 115.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.093      
2 C -0.485      
3 C -0.485      
4 H 0.219      
5 H 0.219      
6 H 0.219      
7 H 0.219      


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 -2.557 2.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.086 0.000 0.000
y 0.000 -24.158 0.000
z 0.000 0.000 -26.597
Traceless
 xyz
x -0.708 0.000 0.000
y 0.000 2.183 0.000
z 0.000 0.000 -1.475
Polar
3z2-r2-2.949
x2-y2-1.928
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.707 0.000 0.000
y 0.000 4.783 0.000
z 0.000 0.000 6.668


<r2> (average value of r2) Å2
<r2> 58.938
(<r2>)1/2 7.677