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

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-153.721153
Energy at 298.15K 
HF Energy-153.721153
Nuclear repulsion energy75.579291
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 M06-2X/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 3140 2984 9.83 200.82 0.10 0.18
2 A1 1572 1494 4.91 3.25 0.63 0.77
3 A1 1343 1276 16.55 25.98 0.19 0.31
4 A1 1179 1120 0.07 1.04 0.53 0.69
5 A1 943 896 58.39 12.62 0.73 0.84
6 A2 3221 3061 0.00 109.70 0.75 0.86
7 A2 1179 1120 0.00 5.15 0.75 0.86
8 A2 1056 1004 0.00 0.30 0.75 0.86
9 B1 3234 3074 48.24 14.60 0.75 0.86
10 B1 1188 1129 4.15 15.38 0.75 0.86
11 B1 819 779 0.06 8.32 0.75 0.86
12 B2 3132 2977 30.23 9.03 0.75 0.86
13 B2 1519 1444 0.46 6.85 0.75 0.86
14 B2 1155 1097 1.22 3.47 0.75 0.86
15 B2 944 897 10.82 4.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12811.4 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 12176.0 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 M06-2X/6-31G**
ABC
0.87299 0.73834 0.47753

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.844
C2 0.000 0.734 -0.366
C3 0.000 -0.734 -0.366
H4 0.921 1.268 -0.589
H5 -0.921 1.268 -0.589
H6 -0.921 -1.268 -0.589
H7 0.921 -1.268 -0.589

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41551.41552.12372.12372.12372.1237
C21.41551.46811.08771.08772.21492.2149
C31.41551.46812.21492.21491.08771.0877
H42.12371.08772.21491.84223.13422.5357
H52.12371.08772.21491.84222.53573.1342
H62.12372.21491.08773.13422.53571.8422
H72.12372.21491.08772.53573.13421.8422

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 58.764 O1 C2 H4 115.450
O1 C2 H5 115.450 O1 C3 C2 58.764
O1 C3 H6 115.450 O1 C3 H7 115.450
C2 O1 C3 62.472 C2 C3 H6 119.392
C2 C3 H7 119.392 C3 C2 H4 119.392
C3 C2 H5 119.392 H4 C2 H5 115.738
H6 C3 H7 115.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.452      
2 C -0.041      
3 C -0.041      
4 H 0.134      
5 H 0.134      
6 H 0.134      
7 H 0.134      


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 -1.977 1.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.161 0.000 0.000
y 0.000 -16.269 0.000
z 0.000 0.000 -20.422
Traceless
 xyz
x 1.185 0.000 0.000
y 0.000 2.522 0.000
z 0.000 0.000 -3.707
Polar
3z2-r2-7.414
x2-y2-0.892
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.355 0.000 0.000
y 0.000 4.254 0.000
z 0.000 0.000 2.671


<r2> (average value of r2) Å2
<r2> 36.198
(<r2>)1/2 6.016