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

using model chemistry: wB97X-D/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/aug-cc-pVQZ
 hartrees
Energy at 0K-153.810263
Energy at 298.15K 
HF Energy-153.810263
Nuclear repulsion energy75.773925
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 wB97X-D/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at wB97X-D/aug-cc-pVQZ
ABC
0.87286 0.74602 0.48009

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.845
C2 0.000 0.729 -0.367
C3 0.000 -0.729 -0.367
H4 0.918 1.263 -0.587
H5 -0.918 1.263 -0.587
H6 -0.918 -1.263 -0.587
H7 0.918 -1.263 -0.587

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41461.41462.11812.11812.11812.1181
C21.41461.45881.08421.08422.20462.2046
C31.41461.45882.20462.20461.08421.0842
H42.11811.08422.20461.83623.12272.5258
H52.11811.08422.20461.83622.52583.1227
H62.11812.20461.08423.12272.52581.8362
H72.11812.20461.08422.52583.12271.8362

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 58.960 O1 C2 H4 115.273
O1 C2 H5 115.273 O1 C3 C2 58.960
O1 C3 H6 115.273 O1 C3 H7 115.273
C2 O1 C3 62.079 C2 C3 H6 119.475
C2 C3 H7 119.475 C3 C2 H4 119.475
C3 C2 H5 119.475 H4 C2 H5 115.725
H6 C3 H7 115.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.676      
2 C 0.035      
3 C 0.035      
4 H 0.152      
5 H 0.152      
6 H 0.152      
7 H 0.152      


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 -1.865 1.865
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.267 0.000 0.000
y 0.000 -16.354 0.000
z 0.000 0.000 -20.799
Traceless
 xyz
x 1.310 0.000 0.000
y 0.000 2.679 0.000
z 0.000 0.000 -3.989
Polar
3z2-r2-7.977
x2-y2-0.912
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 36.169
(<r2>)1/2 6.014