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All results from a given calculation for C2H4O (Ethylene oxide)

using model chemistry: wB97X-D/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-153.750418
Energy at 298.15K 
HF Energy-153.750418
Nuclear repulsion energy75.645043
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(2df,p)
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 3113 3113 12.72 188.38 0.09 0.17
2 A1 1559 1559 3.25 2.85 0.64 0.78
3 A1 1332 1332 14.64 24.20 0.16 0.27
4 A1 1178 1178 0.18 1.62 0.36 0.53
5 A1 930 930 57.35 10.64 0.72 0.84
6 A2 3191 3191 0.00 103.32 0.75 0.86
7 A2 1180 1180 0.00 3.45 0.75 0.86
8 A2 1059 1059 0.00 0.24 0.75 0.86
9 B1 3207 3207 49.70 14.21 0.75 0.86
10 B1 1187 1187 4.01 11.65 0.75 0.86
11 B1 825 825 0.01 6.69 0.75 0.86
12 B2 3104 3104 40.04 9.36 0.75 0.86
13 B2 1513 1513 0.08 5.87 0.75 0.86
14 B2 1168 1168 0.63 2.16 0.75 0.86
15 B2 912 912 11.01 4.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12728.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12728.5 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(2df,p)
ABC
0.87258 0.74139 0.47851

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.844
C2 0.000 0.732 -0.366
C3 0.000 -0.732 -0.366
H4 0.920 1.268 -0.590
H5 -0.920 1.268 -0.590
H6 -0.920 -1.268 -0.590
H7 0.920 -1.268 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41451.41452.12432.12432.12432.1243
C21.41451.46321.08841.08842.21232.2123
C31.41451.46322.21232.21231.08841.0884
H42.12431.08842.21231.84053.13302.5354
H52.12431.08842.21231.84052.53543.1330
H62.12432.21231.08843.13302.53541.8405
H72.12432.21231.08842.53543.13301.8405

picture of Ethylene oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 58.856 O1 C2 H4 115.533
O1 C2 H5 115.533 O1 C3 C2 58.856
O1 C3 H6 115.533 O1 C3 H7 115.533
C2 O1 C3 62.288 C2 C3 H6 119.512
C2 C3 H7 119.512 C3 C2 H4 119.512
C3 C2 H5 119.512 H4 C2 H5 115.458
H6 C3 H7 115.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.234      
2 C -0.161      
3 C -0.161      
4 H 0.139      
5 H 0.139      
6 H 0.139      
7 H 0.139      


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 -1.799 1.799
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.976 0.000 0.000
y 0.000 -16.210 0.000
z 0.000 0.000 -20.166
Traceless
 xyz
x 1.212 0.000 0.000
y 0.000 2.361 0.000
z 0.000 0.000 -3.573
Polar
3z2-r2-7.146
x2-y2-0.766
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.448 0.000 0.000
y 0.000 4.308 0.000
z 0.000 0.000 2.890


<r2> (average value of r2) Å2
<r2> 36.054
(<r2>)1/2 6.005