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

using model chemistry: M06-2X/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 M06-2X/STO-3G
 hartrees
Energy at 0K-151.796619
Energy at 298.15K 
HF Energy-151.796619
Nuclear repulsion energy73.860008
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 M06-2X/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 3413 3413 0.02 66.55 0.10 0.18
2 A1 1690 1690 0.11 11.82 0.62 0.77
3 A1 1417 1417 1.82 18.53 0.33 0.49
4 A1 1285 1285 4.34 1.34 0.26 0.42
5 A1 1010 1010 8.11 7.83 0.73 0.84
6 A2 3548 3548 0.00 48.67 0.75 0.86
7 A2 1233 1233 0.00 6.50 0.75 0.86
8 A2 1083 1083 0.00 0.11 0.75 0.86
9 B1 3556 3556 0.55 7.59 0.75 0.86
10 B1 1202 1202 7.11 11.33 0.75 0.86
11 B1 873 873 0.00 3.60 0.75 0.86
12 B2 3399 3399 6.55 4.46 0.75 0.86
13 B2 1633 1633 0.06 5.25 0.75 0.86
14 B2 1232 1232 0.94 0.11 0.75 0.86
15 B2 1113 1113 0.00 6.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13842.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13842.7 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 M06-2X/STO-3G
ABC
0.82112 0.71555 0.45317

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.876
C2 0.000 0.748 -0.375
C3 0.000 -0.748 -0.375
H4 0.924 1.286 -0.628
H5 -0.924 1.286 -0.628
H6 -0.924 -1.286 -0.628
H7 0.924 -1.286 -0.628

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.45731.45732.18392.18392.18392.1839
C21.45731.49691.09901.09902.24912.2491
C31.45731.49692.24912.24911.09901.0990
H42.18391.09902.24911.84883.16802.5725
H52.18391.09902.24911.84882.57253.1680
H62.18392.24911.09903.16802.57251.8488
H72.18392.24911.09902.57253.16801.8488

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 59.097 O1 C2 H4 116.670
O1 C2 H5 116.670 O1 C3 C2 59.097
O1 C3 H6 116.670 O1 C3 H7 116.670
C2 O1 C3 61.805 C2 C3 H6 119.298
C2 C3 H7 119.298 C3 C2 H4 119.298
C3 C2 H5 119.298 H4 C2 H5 114.524
H6 C3 H7 114.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.175      
2 C -0.079      
3 C -0.079      
4 H 0.083      
5 H 0.083      
6 H 0.083      
7 H 0.083      


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 -1.317 1.317
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.188 0.000 0.000
y 0.000 -15.872 0.000
z 0.000 0.000 -18.756
Traceless
 xyz
x 1.126 0.000 0.000
y 0.000 1.600 0.000
z 0.000 0.000 -2.725
Polar
3z2-r2-5.450
x2-y2-0.316
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.612 0.000 0.000
y 0.000 2.453 0.000
z 0.000 0.000 1.324


<r2> (average value of r2) Å2
<r2> 36.734
(<r2>)1/2 6.061