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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-153.693026
Energy at 298.15K 
HF Energy-153.693026
Nuclear repulsion energy74.813176
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 B97D3/6-31G*
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 3041 2981 17.02 208.62 0.09 0.17
2 A1 1540 1510 4.53 4.49 0.74 0.85
3 A1 1286 1261 11.01 22.23 0.16 0.28
4 A1 1132 1110 0.22 2.46 0.50 0.67
5 A1 895 877 54.96 11.72 0.75 0.86
6 A2 3108 3047 0.00 120.95 0.75 0.86
7 A2 1167 1144 0.00 5.39 0.75 0.86
8 A2 1022 1002 0.00 0.19 0.75 0.86
9 B1 3125 3064 85.98 18.19 0.75 0.86
10 B1 1150 1127 1.86 16.54 0.75 0.86
11 B1 806 790 0.24 10.85 0.75 0.86
12 B2 3034 2974 55.41 11.58 0.75 0.86
13 B2 1504 1474 1.69 7.68 0.75 0.86
14 B2 1112 1090 2.03 4.34 0.75 0.86
15 B2 839 823 15.83 3.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12379.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 12136.8 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 B97D3/6-31G*
ABC
0.84570 0.73180 0.46733

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.860
C2 0.000 0.736 -0.374
C3 0.000 -0.736 -0.374
H4 0.925 1.278 -0.599
H5 -0.925 1.278 -0.599
H6 -0.925 -1.278 -0.599
H7 0.925 -1.278 -0.599

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43611.43612.14862.14862.14862.1486
C21.43611.47191.09561.09562.22802.2280
C31.43611.47192.22802.22801.09561.0956
H42.14861.09562.22801.84983.15592.5569
H52.14861.09562.22801.84982.55693.1559
H62.14862.22801.09563.15592.55691.8498
H72.14862.22801.09562.55693.15591.8498

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 59.172 O1 C2 H4 115.477
O1 C2 H5 115.477 O1 C3 C2 59.172
O1 C3 H6 115.477 O1 C3 H7 115.477
C2 O1 C3 61.656 C2 C3 H6 119.682
C2 C3 H7 119.682 C3 C2 H4 119.682
C3 C2 H5 119.682 H4 C2 H5 115.163
H6 C3 H7 115.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.409      
2 C -0.106      
3 C -0.106      
4 H 0.155      
5 H 0.155      
6 H 0.155      
7 H 0.155      


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 -1.873 1.873
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.169 0.000 0.000
y 0.000 -16.334 0.000
z 0.000 0.000 -20.192
Traceless
 xyz
x 1.094 0.000 0.000
y 0.000 2.347 0.000
z 0.000 0.000 -3.441
Polar
3z2-r2-6.882
x2-y2-0.836
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.360 0.000 0.000
y 0.000 4.280 0.000
z 0.000 0.000 2.754


<r2> (average value of r2) Å2
<r2> 36.657
(<r2>)1/2 6.054