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

using model chemistry: B97D3/TZVP

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/TZVP
 hartrees
Energy at 0K-153.751899
Energy at 298.15K 
HF Energy-153.751899
Nuclear repulsion energy74.909116
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/TZVP
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 3029 2986 18.70 250.07 0.09 0.16
2 A1 1510 1488 3.76 2.46 0.75 0.86
3 A1 1267 1249 12.18 27.67 0.13 0.23
4 A1 1113 1097 0.02 2.00 0.44 0.62
5 A1 874 861 67.91 11.57 0.75 0.85
6 A2 3101 3057 0.00 127.50 0.75 0.86
7 A2 1153 1137 0.00 1.86 0.75 0.86
8 A2 1016 1001 0.00 0.04 0.75 0.86
9 B1 3118 3073 67.66 23.96 0.75 0.86
10 B1 1141 1125 2.49 10.10 0.75 0.86
11 B1 805 793 0.01 8.01 0.75 0.86
12 B2 3023 2980 50.37 14.23 0.75 0.86
13 B2 1480 1459 0.15 7.12 0.75 0.86
14 B2 1110 1094 4.08 3.95 0.75 0.86
15 B2 814 802 15.01 2.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12277.0 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 12100.3 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/TZVP
ABC
0.84510 0.73575 0.46841

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.860
C2 0.000 0.735 -0.374
C3 0.000 -0.735 -0.374
H4 0.923 1.273 -0.597
H5 -0.923 1.273 -0.597
H6 -0.923 -1.273 -0.597
H7 0.923 -1.273 -0.597

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43671.43672.14372.14372.14372.1437
C21.43671.46901.09151.09152.22042.2204
C31.43671.46902.22042.22041.09151.0915
H42.14371.09152.22041.84633.14432.5452
H52.14371.09152.22041.84632.54523.1443
H62.14372.22041.09153.14432.54521.8463
H72.14372.22041.09152.54523.14431.8463

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 59.253 O1 C2 H4 115.300
O1 C2 H5 115.300 O1 C3 C2 59.253
O1 C3 H6 115.300 O1 C3 H7 115.300
C2 O1 C3 61.495 C2 C3 H6 119.539
C2 C3 H7 119.539 C3 C2 H4 119.539
C3 C2 H5 119.539 H4 C2 H5 115.510
H6 C3 H7 115.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.245      
2 C -0.111      
3 C -0.111      
4 H 0.117      
5 H 0.117      
6 H 0.117      
7 H 0.117      


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 -1.968 1.968
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.437 0.000 0.000
y 0.000 -16.576 0.000
z 0.000 0.000 -20.815
Traceless
 xyz
x 1.259 0.000 0.000
y 0.000 2.550 0.000
z 0.000 0.000 -3.808
Polar
3z2-r2-7.616
x2-y2-0.861
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.722 0.000 0.000
y 0.000 4.737 0.000
z 0.000 0.000 3.395


<r2> (average value of r2) Å2
<r2> 36.805
(<r2>)1/2 6.067