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

using model chemistry: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-153.848849
Energy at 298.15K 
HF Energy-153.848849
Nuclear repulsion energy75.334766
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 B3LYPultrafine/cc-pVTZ
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 3088 2985 15.19 238.08 0.08 0.15
2 A1 1541 1489 2.59 1.77 0.73 0.84
3 A1 1300 1257 14.44 27.24 0.14 0.25
4 A1 1150 1111 0.00 1.55 0.40 0.58
5 A1 891 861 65.19 10.05 0.73 0.84
6 A2 3160 3054 0.00 118.78 0.75 0.86
7 A2 1176 1137 0.00 1.79 0.75 0.86
8 A2 1046 1011 0.00 0.02 0.75 0.86
9 B1 3175 3070 50.47 19.15 0.75 0.86
10 B1 1170 1131 3.42 8.24 0.75 0.86
11 B1 819 792 0.01 5.20 0.75 0.86
12 B2 3081 2979 42.66 10.48 0.75 0.86
13 B2 1507 1457 0.02 5.22 0.75 0.86
14 B2 1156 1117 1.43 1.41 0.75 0.86
15 B2 845 817 11.61 3.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12552.0 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 12134.1 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 B3LYPultrafine/cc-pVTZ
ABC
0.85695 0.74227 0.47362

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.854
C2 0.000 0.732 -0.372
C3 0.000 -0.732 -0.372
H4 0.918 1.267 -0.593
H5 -0.918 1.267 -0.593
H6 -0.918 -1.267 -0.593
H7 0.918 -1.267 -0.593

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42771.42772.13052.13052.13052.1305
C21.42771.46331.08491.08492.21002.2100
C31.42771.46332.21002.21001.08491.0849
H42.13051.08492.21001.83533.12832.5333
H52.13051.08492.21001.83532.53333.1283
H62.13052.21001.08493.12832.53331.8353
H72.13052.21001.08492.53333.12831.8353

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 59.171 O1 C2 H4 115.299
O1 C2 H5 115.299 O1 C3 C2 59.171
O1 C3 H6 115.299 O1 C3 H7 115.299
C2 O1 C3 61.658 C2 C3 H6 119.547
C2 C3 H7 119.547 C3 C2 H4 119.547
C3 C2 H5 119.547 H4 C2 H5 115.526
H6 C3 H7 115.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.303      
2 C -0.031      
3 C -0.031      
4 H 0.091      
5 H 0.091      
6 H 0.091      
7 H 0.091      


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 -1.896 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.431 0.000 0.000
y 0.000 -16.597 0.000
z 0.000 0.000 -20.675
Traceless
 xyz
x 1.204 0.000 0.000
y 0.000 2.456 0.000
z 0.000 0.000 -3.661
Polar
3z2-r2-7.321
x2-y2-0.834
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.639 0.000 0.000
y 0.000 4.621 0.000
z 0.000 0.000 3.360


<r2> (average value of r2) Å2
<r2> 36.499
(<r2>)1/2 6.041