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

using model chemistry: wB97X-D/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/cc-pVQZ
 hartrees
Energy at 0K-153.808995
Energy at 298.15K 
HF Energy-153.808995
Nuclear repulsion energy75.782988
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/cc-pVQZ
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 3112 3112 15.38 235.77 0.07 0.13
2 A1 1555 1555 3.14 1.88 0.37 0.54
3 A1 1327 1327 16.89 28.76 0.13 0.23
4 A1 1172 1172 0.14 1.44 0.40 0.57
5 A1 923 923 70.07 9.19 0.70 0.82
6 A2 3189 3189 0.00 109.65 0.75 0.86
7 A2 1182 1182 0.00 1.11 0.75 0.86
8 A2 1062 1062 0.00 0.06 0.75 0.86
9 B1 3204 3204 42.13 18.74 0.75 0.86
10 B1 1188 1188 4.41 5.38 0.75 0.86
11 B1 830 830 0.10 3.77 0.75 0.86
12 B2 3105 3105 37.74 9.70 0.75 0.86
13 B2 1512 1512 0.19 4.14 0.75 0.86
14 B2 1175 1175 0.62 0.73 0.75 0.86
15 B2 903 903 11.05 3.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12718.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12718.5 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/cc-pVQZ
ABC
0.87312 0.74615 0.48019

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.844
C2 0.000 0.729 -0.367
C3 0.000 -0.729 -0.367
H4 0.918 1.263 -0.588
H5 -0.918 1.263 -0.588
H6 -0.918 -1.263 -0.588
H7 0.918 -1.263 -0.588

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41421.41422.11852.11852.11852.1185
C21.41421.45881.08431.08432.20442.2044
C31.41421.45882.20442.20441.08431.0843
H42.11851.08432.20441.83593.12212.5253
H52.11851.08432.20441.83592.52533.1221
H62.11852.20441.08433.12212.52531.8359
H72.11852.20441.08432.52533.12211.8359

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 58.951 O1 C2 H4 115.337
O1 C2 H5 115.337 O1 C3 C2 58.951
O1 C3 H6 115.337 O1 C3 H7 115.337
C2 O1 C3 62.098 C2 C3 H6 119.458
C2 C3 H7 119.458 C3 C2 H4 119.458
C3 C2 H5 119.458 H4 C2 H5 115.691
H6 C3 H7 115.691
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.355      
2 C 0.149      
3 C 0.149      
4 H 0.014      
5 H 0.014      
6 H 0.014      
7 H 0.014      


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 -1.863 1.863
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.202 0.000 0.000
y 0.000 -16.369 0.000
z 0.000 0.000 -20.639
Traceless
 xyz
x 1.303 0.000 0.000
y 0.000 2.551 0.000
z 0.000 0.000 -3.854
Polar
3z2-r2-7.708
x2-y2-0.832
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.740 0.000 0.000
y 0.000 4.667 0.000
z 0.000 0.000 3.586


<r2> (average value of r2) Å2
<r2> 36.122
(<r2>)1/2 6.010