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

using model chemistry: B97D3/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-153.707106
Energy at 298.15K 
HF Energy-153.707106
Nuclear repulsion energy74.970185
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(2df,p)
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 3028 3028 16.78 201.06 0.09 0.17
2 A1 1511 1511 3.38 4.05 0.75 0.86
3 A1 1281 1281 11.23 22.03 0.15 0.26
4 A1 1124 1124 0.18 2.90 0.37 0.54
5 A1 894 894 50.65 10.00 0.74 0.85
6 A2 3098 3098 0.00 113.73 0.75 0.86
7 A2 1151 1151 0.00 3.98 0.75 0.86
8 A2 1022 1022 0.00 0.18 0.75 0.86
9 B1 3116 3116 70.48 16.94 0.75 0.86
10 B1 1146 1146 2.54 12.85 0.75 0.86
11 B1 799 799 0.12 8.09 0.75 0.86
12 B2 3020 3020 51.71 11.11 0.75 0.86
13 B2 1478 1478 0.82 6.63 0.75 0.86
14 B2 1121 1121 0.56 2.88 0.75 0.86
15 B2 837 837 13.63 2.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12313.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12313.0 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(2df,p)
ABC
0.85029 0.73393 0.46939

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

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 -0.372
C3 0.000 -0.735 -0.372
H4 0.924 1.276 -0.598
H5 -0.924 1.276 -0.598
H6 -0.924 -1.276 -0.598
H7 0.924 -1.276 -0.598

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43221.43222.14432.14432.14432.1443
C21.43221.47021.09391.09392.22432.2243
C31.43221.47022.22432.22431.09391.0939
H42.14431.09392.22431.84763.14992.5512
H52.14431.09392.22431.84762.55123.1499
H62.14432.22431.09393.14992.55121.8476
H72.14432.22431.09392.55123.14991.8476

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 59.117 O1 C2 H4 115.526
O1 C2 H5 115.526 O1 C3 C2 59.117
O1 C3 H6 115.526 O1 C3 H7 115.526
C2 O1 C3 61.766 C2 C3 H6 119.609
C2 C3 H7 119.609 C3 C2 H4 119.609
C3 C2 H5 119.609 H4 C2 H5 115.239
H6 C3 H7 115.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.213      
2 C -0.131      
3 C -0.131      
4 H 0.119      
5 H 0.119      
6 H 0.119      
7 H 0.119      


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 -1.695 1.695
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.103 0.000 0.000
y 0.000 -16.412 0.000
z 0.000 0.000 -20.065
Traceless
 xyz
x 1.136 0.000 0.000
y 0.000 2.172 0.000
z 0.000 0.000 -3.308
Polar
3z2-r2-6.615
x2-y2-0.691
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.546 0.000 0.000
y 0.000 4.415 0.000
z 0.000 0.000 2.995


<r2> (average value of r2) Å2
<r2> 36.530
(<r2>)1/2 6.044