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

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-153.777418
Energy at 298.15K 
HF Energy-153.777418
Nuclear repulsion energy75.611167
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/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 3107 2971 12.29 215.24 0.09 0.17
2 A1 1557 1489 3.86 1.55 0.54 0.70
3 A1 1328 1270 16.94 26.53 0.16 0.28
4 A1 1167 1116 0.14 0.72 0.60 0.75
5 A1 920 880 71.70 11.31 0.72 0.84
6 A2 3183 3045 0.00 113.43 0.75 0.86
7 A2 1177 1126 0.00 2.69 0.75 0.86
8 A2 1054 1008 0.00 0.14 0.75 0.86
9 B1 3198 3059 58.04 16.92 0.75 0.86
10 B1 1185 1134 4.79 10.49 0.75 0.86
11 B1 828 792 0.02 5.92 0.75 0.86
12 B2 3097 2962 42.09 9.59 0.75 0.86
13 B2 1510 1445 0.01 6.01 0.75 0.86
14 B2 1155 1104 2.32 1.72 0.75 0.86
15 B2 899 860 11.31 4.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12682.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 12131.2 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 wB97X-D/6-311G**
ABC
0.87040 0.74179 0.47799

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.846
C2 0.000 0.732 -0.367
C3 0.000 -0.732 -0.367
H4 0.920 1.267 -0.590
H5 -0.920 1.267 -0.590
H6 -0.920 -1.267 -0.590
H7 0.920 -1.267 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41651.41652.12402.12402.12402.1240
C21.41651.46321.08731.08732.21102.2110
C31.41651.46322.21102.21101.08731.0873
H42.12401.08732.21101.84023.13092.5330
H52.12401.08732.21101.84022.53303.1309
H62.12402.21101.08733.13092.53301.8402
H72.12402.21101.08732.53303.13091.8402

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 58.903 O1 C2 H4 115.425
O1 C2 H5 115.425 O1 C3 C2 58.903
O1 C3 H6 115.425 O1 C3 H7 115.425
C2 O1 C3 62.195 C2 C3 H6 119.469
C2 C3 H7 119.469 C3 C2 H4 119.469
C3 C2 H5 119.469 H4 C2 H5 115.608
H6 C3 H7 115.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.308      
2 C -0.097      
3 C -0.097      
4 H 0.125      
5 H 0.125      
6 H 0.125      
7 H 0.125      


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 -17.125 0.000 0.000
y 0.000 -16.294 0.000
z 0.000 0.000 -20.539
Traceless
 xyz
x 1.292 0.000 0.000
y 0.000 2.538 0.000
z 0.000 0.000 -3.829
Polar
3z2-r2-7.658
x2-y2-0.831
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.369 0.000 0.000
y 0.000 4.367 0.000
z 0.000 0.000 2.929


<r2> (average value of r2) Å2
<r2> 36.191
(<r2>)1/2 6.016