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

using model chemistry: B3LYPultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-153.823813
Energy at 298.15K 
HF Energy-153.823813
Nuclear repulsion energy75.222439
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 B3LYPultrafine/6-311G*
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 3087 2983 14.50 215.27 0.10 0.18
2 A1 1553 1501 2.94 2.09 0.74 0.85
3 A1 1304 1260 14.50 24.82 0.16 0.27
4 A1 1148 1110 0.01 1.38 0.55 0.71
5 A1 892 862 69.54 11.18 0.74 0.85
6 A2 3160 3054 0.00 122.31 0.75 0.86
7 A2 1185 1145 0.00 3.18 0.75 0.86
8 A2 1047 1012 0.00 0.11 0.75 0.86
9 B1 3176 3069 74.00 17.94 0.75 0.86
10 B1 1177 1137 3.94 12.03 0.75 0.86
11 B1 823 795 0.00 7.12 0.75 0.86
12 B2 3079 2976 51.98 10.89 0.75 0.86
13 B2 1516 1465 0.10 6.38 0.75 0.86
14 B2 1138 1100 2.94 2.50 0.75 0.86
15 B2 844 816 12.26 3.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12565.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 12141.8 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 B3LYPultrafine/6-311G*
ABC
0.85700 0.73806 0.47233

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.854
C2 0.000 0.733 -0.372
C3 0.000 -0.733 -0.372
H4 0.920 1.272 -0.590
H5 -0.920 1.272 -0.590
H6 -0.920 -1.272 -0.590
H7 0.920 -1.272 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42851.42852.13262.13262.13262.1326
C21.42851.46681.08791.08792.21692.2169
C31.42851.46682.21692.21691.08791.0879
H42.13261.08792.21691.83963.13932.5439
H52.13261.08792.21691.83962.54393.1393
H62.13262.21691.08793.13932.54391.8396
H72.13262.21691.08792.54393.13931.8396

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 59.111 O1 C2 H4 115.206
O1 C2 H5 115.206 O1 C3 C2 59.111
O1 C3 H6 115.206 O1 C3 H7 115.206
C2 O1 C3 61.778 C2 C3 H6 119.674
C2 C3 H7 119.674 C3 C2 H4 119.674
C3 C2 H5 119.674 H4 C2 H5 115.452
H6 C3 H7 115.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.292      
2 C -0.271      
3 C -0.271      
4 H 0.209      
5 H 0.209      
6 H 0.209      
7 H 0.209      


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 -1.976 1.976
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.317 0.000 0.000
y 0.000 -16.517 0.000
z 0.000 0.000 -20.726
Traceless
 xyz
x 1.305 0.000 0.000
y 0.000 2.504 0.000
z 0.000 0.000 -3.809
Polar
3z2-r2-7.619
x2-y2-0.799
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.370 0.000 0.000
y 0.000 4.368 0.000
z 0.000 0.000 2.910


<r2> (average value of r2) Å2
<r2> 36.553
(<r2>)1/2 6.046