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

using model chemistry: BLYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/Def2TZVPP
 hartrees
Energy at 0K-153.801750
Energy at 298.15K 
HF Energy-153.801750
Nuclear repulsion energy74.509214
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 BLYP/Def2TZVPP
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 3010 3010 16.63 255.41 0.08 0.14
2 A1 1494 1494 2.48 2.44 0.75 0.86
3 A1 1247 1247 11.88 27.50 0.12 0.22
4 A1 1102 1102 0.03 2.50 0.32 0.48
5 A1 843 843 61.74 10.09 0.74 0.85
6 A2 3080 3080 0.00 126.81 0.75 0.86
7 A2 1144 1144 0.00 1.64 0.75 0.86
8 A2 1008 1008 0.00 0.02 0.75 0.86
9 B1 3096 3096 54.82 22.88 0.75 0.86
10 B1 1127 1127 2.25 8.51 0.75 0.86
11 B1 796 796 0.00 6.40 0.75 0.86
12 B2 3004 3004 45.50 12.99 0.75 0.86
13 B2 1469 1469 0.10 5.73 0.75 0.86
14 B2 1114 1114 2.02 2.26 0.75 0.86
15 B2 778 778 12.56 2.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12154.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12154.9 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 BLYP/Def2TZVPP
ABC
0.83207 0.73125 0.46265

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.868
C2 0.000 0.737 -0.379
C3 0.000 -0.737 -0.379
H4 0.923 1.276 -0.599
H5 -0.923 1.276 -0.599
H6 -0.923 -1.276 -0.599
H7 0.923 -1.276 -0.599

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44881.44882.15292.15292.15292.1529
C21.44881.47461.09171.09172.22632.2263
C31.44881.47462.22632.22631.09171.0917
H42.15291.09172.22631.84703.15092.5528
H52.15291.09172.22631.84702.55283.1509
H62.15292.22631.09173.15092.55281.8470
H72.15292.22631.09172.55283.15091.8470

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 59.408 O1 C2 H4 115.142
O1 C2 H5 115.142 O1 C3 C2 59.408
O1 C3 H6 115.142 O1 C3 H7 115.142
C2 O1 C3 61.183 C2 C3 H6 119.589
C2 C3 H7 119.589 C3 C2 H4 119.589
C3 C2 H5 119.589 H4 C2 H5 115.534
H6 C3 H7 115.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.336      
2 C -0.017      
3 C -0.017      
4 H 0.092      
5 H 0.092      
6 H 0.092      
7 H 0.092      


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 -1.876 1.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.747 0.000 0.000
y 0.000 -16.861 0.000
z 0.000 0.000 -20.963
Traceless
 xyz
x 1.165 0.000 0.000
y 0.000 2.494 0.000
z 0.000 0.000 -3.659
Polar
3z2-r2-7.318
x2-y2-0.886
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.895 0.000 0.000
y 0.000 4.916 0.000
z 0.000 0.000 3.707


<r2> (average value of r2) Å2
<r2> 37.211
(<r2>)1/2 6.100