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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-153.640863
Energy at 298.15K 
HF Energy-153.640863
Nuclear repulsion energy73.064302
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 3081 3081 8.12 214.44 0.09 0.16
2 A1 1531 1531 0.77 6.96 0.68 0.81
3 A1 1244 1244 6.12 20.61 0.13 0.22
4 A1 1108 1108 4.00 6.27 0.44 0.62
5 A1 815 815 43.67 11.64 0.70 0.83
6 A2 3161 3161 0.00 119.42 0.75 0.86
7 A2 1181 1181 0.00 6.12 0.75 0.86
8 A2 988 988 0.00 0.00 0.75 0.86
9 B1 3181 3181 70.57 17.11 0.75 0.86
10 B1 1097 1097 0.80 19.14 0.75 0.86
11 B1 818 818 0.00 12.46 0.75 0.86
12 B2 3072 3072 35.94 11.00 0.75 0.86
13 B2 1515 1515 0.03 6.77 0.75 0.86
14 B2 1121 1121 9.81 4.92 0.75 0.86
15 B2 725 725 8.59 6.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12318.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12318.9 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
0.77514 0.72431 0.44170

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 0.906
C2 0.000 0.742 -0.398
C3 0.000 -0.742 -0.398
H4 0.922 1.282 -0.617
H5 -0.922 1.282 -0.617
H6 -0.922 -1.282 -0.617
H7 0.922 -1.282 -0.617

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.50011.50012.19382.19382.19382.1938
C21.50011.48421.09091.09092.23532.2353
C31.50011.48422.23532.23531.09091.0909
H42.19381.09092.23531.84433.15902.5647
H52.19381.09092.23531.84432.56473.1590
H62.19382.23531.09093.15902.56471.8443
H72.19382.23531.09092.56473.15901.8443

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 60.350 O1 C2 H4 114.790
O1 C2 H5 114.790 O1 C3 C2 60.350
O1 C3 H6 114.790 O1 C3 H7 114.790
C2 O1 C3 59.299 C2 C3 H6 119.684
C2 C3 H7 119.684 C3 C2 H4 119.684
C3 C2 H5 119.684 H4 C2 H5 115.408
H6 C3 H7 115.408
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 -0.453      
2 C -0.099      
3 C -0.099      
4 H 0.163      
5 H 0.163      
6 H 0.163      
7 H 0.163      


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 -2.425 2.425
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.260 0.000 0.000
y 0.000 -16.226 0.000
z 0.000 0.000 -20.823
Traceless
 xyz
x 1.265 0.000 0.000
y 0.000 2.816 0.000
z 0.000 0.000 -4.081
Polar
3z2-r2-8.162
x2-y2-1.034
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.153 0.000 0.000
y 0.000 4.267 0.000
z 0.000 0.000 2.899


<r2> (average value of r2) Å2
<r2> 37.879
(<r2>)1/2 6.155