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

using model chemistry: B3LYPultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-153.800833
Energy at 298.15K 
HF Energy-153.800833
Nuclear repulsion energy74.996069
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/6-31+G**
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 3106 2990 14.73 217.15 0.10 0.18
2 A1 1545 1488 4.46 3.13 0.52 0.69
3 A1 1302 1253 14.20 31.07 0.14 0.24
4 A1 1152 1109 0.01 2.38 0.15 0.27
5 A1 889 856 77.85 11.82 0.74 0.85
6 A2 3183 3064 0.00 119.17 0.75 0.86
7 A2 1176 1133 0.00 2.75 0.75 0.86
8 A2 1041 1002 0.00 0.23 0.75 0.86
9 B1 3197 3078 47.65 24.61 0.75 0.86
10 B1 1166 1122 3.57 6.29 0.75 0.86
11 B1 817 786 0.16 4.74 0.75 0.86
12 B2 3099 2983 37.02 11.41 0.75 0.86
13 B2 1509 1453 0.06 6.53 0.75 0.86
14 B2 1155 1112 1.10 1.45 0.75 0.86
15 B2 845 814 11.09 5.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12590.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 12121.1 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 B3LYPultrafine/6-31+G**
ABC
0.85019 0.73492 0.46934

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.857
C2 0.000 0.735 -0.375
C3 0.000 -0.735 -0.375
H4 0.922 1.274 -0.590
H5 -0.922 1.274 -0.590
H6 -0.922 -1.274 -0.590
H7 0.922 -1.274 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43461.43462.13722.13722.13722.1372
C21.43461.47031.08911.08912.22092.2209
C31.43461.47032.22092.22091.08911.0891
H42.13721.08912.22091.84333.14482.5480
H52.13721.08912.22091.84332.54803.1448
H62.13722.22091.08913.14482.54801.8433
H72.13722.22091.08912.54803.14481.8433

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 59.173 O1 C2 H4 115.054
O1 C2 H5 115.054 O1 C3 C2 59.173
O1 C3 H6 115.054 O1 C3 H7 115.054
C2 O1 C3 61.653 C2 C3 H6 119.652
C2 C3 H7 119.652 C3 C2 H4 119.652
C3 C2 H5 119.652 H4 C2 H5 115.603
H6 C3 H7 115.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.342      
2 C -0.113      
3 C -0.113      
4 H 0.142      
5 H 0.142      
6 H 0.142      
7 H 0.142      


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 -2.143 2.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.598 0.000 0.000
y 0.000 -16.553 0.000
z 0.000 0.000 -21.226
Traceless
 xyz
x 1.292 0.000 0.000
y 0.000 2.859 0.000
z 0.000 0.000 -4.151
Polar
3z2-r2-8.302
x2-y2-1.045
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.614 0.000 0.000
y 0.000 4.552 0.000
z 0.000 0.000 3.420


<r2> (average value of r2) Å2
<r2> 36.862
(<r2>)1/2 6.071