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

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-151.777075
Energy at 298.15K 
HF Energy-151.777075
Nuclear repulsion energy73.491571
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 3366 3366 0.02 70.08 0.10 0.18
2 A1 1681 1681 0.10 12.52 0.67 0.80
3 A1 1395 1395 1.75 17.34 0.30 0.46
4 A1 1269 1269 4.74 1.78 0.26 0.41
5 A1 992 992 8.41 7.70 0.73 0.85
6 A2 3502 3502 0.00 50.86 0.75 0.86
7 A2 1231 1231 0.00 6.38 0.75 0.86
8 A2 1074 1074 0.00 0.14 0.75 0.86
9 B1 3511 3511 2.40 8.22 0.75 0.86
10 B1 1190 1190 5.98 11.20 0.75 0.86
11 B1 877 877 0.01 3.80 0.75 0.86
12 B2 3353 3353 3.34 4.90 0.75 0.86
13 B2 1631 1631 0.08 5.42 0.75 0.86
14 B2 1217 1217 1.55 0.32 0.75 0.86
15 B2 1077 1077 0.04 6.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13684.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13684.1 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
0.80931 0.71150 0.44846

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)
O1 0.000 0.000 0.883
C2 0.000 0.750 -0.378
C3 0.000 -0.750 -0.378
H4 0.927 1.290 -0.633
H5 -0.927 1.290 -0.633
H6 -0.927 -1.290 -0.633
H7 0.927 -1.290 -0.633

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.46711.46712.19582.19582.19582.1958
C21.46711.50081.10281.10282.25602.2560
C31.46711.50082.25602.25601.10281.1028
H42.19581.10282.25601.85453.17802.5808
H52.19581.10282.25601.85452.58083.1780
H62.19582.25601.10283.17802.58081.8545
H72.19582.25601.10282.58083.17801.8545

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 59.237 O1 C2 H4 116.676
O1 C2 H5 116.676 O1 C3 C2 59.237
O1 C3 H6 116.676 O1 C3 H7 116.676
C2 O1 C3 61.526 C2 C3 H6 119.316
C2 C3 H7 119.316 C3 C2 H4 119.316
C3 C2 H5 119.316 H4 C2 H5 114.444
H6 C3 H7 114.444
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 O -0.169      
2 C -0.087      
3 C -0.087      
4 H 0.086      
5 H 0.086      
6 H 0.086      
7 H 0.086      


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 -1.299 1.299
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.155 0.000 0.000
y 0.000 -15.853 0.000
z 0.000 0.000 -18.685
Traceless
 xyz
x 1.114 0.000 0.000
y 0.000 1.567 0.000
z 0.000 0.000 -2.681
Polar
3z2-r2-5.361
x2-y2-0.302
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.625 0.000 0.000
y 0.000 2.462 0.000
z 0.000 0.000 1.365


<r2> (average value of r2) Å2
<r2> 36.960
(<r2>)1/2 6.079