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

using model chemistry: B97D3/STO-3G

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/STO-3G
 hartrees
Energy at 0K-151.751505
Energy at 298.15K 
HF Energy-151.751505
Nuclear repulsion energy72.717152
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/STO-3G
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 3229 3229 1.42 79.32 0.09 0.16
2 A1 1624 1624 0.65 14.19 0.73 0.84
3 A1 1335 1335 1.88 15.22 0.27 0.43
4 A1 1201 1201 3.39 2.23 0.29 0.45
5 A1 948 948 7.81 7.55 0.74 0.85
6 A2 3359 3359 0.00 56.00 0.75 0.86
7 A2 1186 1186 0.00 6.34 0.75 0.86
8 A2 1034 1034 0.00 0.23 0.75 0.86
9 B1 3370 3370 14.03 9.77 0.75 0.86
10 B1 1143 1143 4.23 11.28 0.75 0.86
11 B1 848 848 0.04 4.41 0.75 0.86
12 B2 3219 3219 0.03 6.18 0.75 0.86
13 B2 1589 1589 0.82 6.13 0.75 0.86
14 B2 1148 1148 1.96 1.07 0.75 0.86
15 B2 991 991 1.05 4.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13111.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13111.7 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/STO-3G
ABC
0.78685 0.70144 0.43864

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.897
C2 0.000 0.755 -0.384
C3 0.000 -0.755 -0.384
H4 0.934 1.302 -0.642
H5 -0.934 1.302 -0.642
H6 -0.934 -1.302 -0.642
H7 0.934 -1.302 -0.642

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.48661.48662.22132.22132.22132.2213
C21.48661.51031.11231.11232.27372.2737
C31.48661.51032.27372.27371.11231.1123
H42.22131.11232.27371.86703.20412.6040
H52.22131.11232.27371.86702.60403.2041
H62.22132.27371.11233.20412.60401.8670
H72.22132.27371.11232.60403.20411.8670

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 59.471 O1 C2 H4 116.725
O1 C2 H5 116.725 O1 C3 C2 59.471
O1 C3 H6 116.725 O1 C3 H7 116.725
C2 O1 C3 61.058 C2 C3 H6 119.449
C2 C3 H7 119.449 C3 C2 H4 119.449
C3 C2 H5 119.449 H4 C2 H5 114.129
H6 C3 H7 114.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.159      
2 C -0.080      
3 C -0.080      
4 H 0.080      
5 H 0.080      
6 H 0.080      
7 H 0.080      


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 -1.201 1.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.250 0.000 0.000
y 0.000 -15.917 0.000
z 0.000 0.000 -18.563
Traceless
 xyz
x 0.989 0.000 0.000
y 0.000 1.490 0.000
z 0.000 0.000 -2.479
Polar
3z2-r2-4.958
x2-y2-0.334
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.674 0.000 0.000
y 0.000 2.515 0.000
z 0.000 0.000 1.440


<r2> (average value of r2) Å2
<r2> 37.520
(<r2>)1/2 6.125