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

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-153.677625
Energy at 298.15K 
HF Energy-153.515443
Nuclear repulsion energy75.215471
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 B2PLYP/6-311G**
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 3119 3119 12.00 217.55 0.09 0.17
2 A1 1557 1557 2.74 1.89 0.73 0.85
3 A1 1310 1310 12.48 25.46 0.15 0.26
4 A1 1158 1158 0.02 1.75 0.43 0.60
5 A1 896 896 64.97 10.82 0.75 0.85
6 A2 3197 3197 0.00 115.01 0.75 0.86
7 A2 1185 1185 0.00 2.86 0.75 0.86
8 A2 1052 1052 0.00 0.06 0.75 0.86
9 B1 3212 3212 56.91 17.45 0.75 0.86
10 B1 1179 1179 4.27 10.76 0.75 0.86
11 B1 826 826 0.00 6.17 0.75 0.86
12 B2 3111 3111 39.58 10.00 0.75 0.86
13 B2 1521 1521 0.07 6.05 0.75 0.86
14 B2 1153 1153 2.86 2.02 0.75 0.86
15 B2 846 846 10.18 4.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12660.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12660.8 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 B2PLYP/6-311G**
ABC
0.85429 0.73976 0.47209

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.855
C2 0.000 0.733 -0.373
C3 0.000 -0.733 -0.373
H4 0.919 1.267 -0.593
H5 -0.919 1.267 -0.593
H6 -0.919 -1.267 -0.593
H7 0.919 -1.267 -0.593

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43021.43022.13292.13292.13292.1329
C21.43021.46661.08581.08582.21282.2128
C31.43021.46662.21282.21281.08581.0858
H42.13291.08582.21281.83843.13142.5349
H52.13291.08582.21281.83842.53493.1314
H62.13292.21281.08583.13142.53491.8384
H72.13292.21281.08582.53493.13141.8384

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 59.155 O1 C2 H4 115.248
O1 C2 H5 115.248 O1 C3 C2 59.155
O1 C3 H6 115.248 O1 C3 H7 115.248
C2 O1 C3 61.689 C2 C3 H6 119.471
C2 C3 H7 119.471 C3 C2 H4 119.471
C3 C2 H5 119.471 H4 C2 H5 115.690
H6 C3 H7 115.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.315      
2 C -0.074      
3 C -0.074      
4 H 0.116      
5 H 0.116      
6 H 0.116      
7 H 0.116      


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 -1.979 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.383 0.000 0.000
y 0.000 -16.553 0.000
z 0.000 0.000 -20.682
Traceless
 xyz
x 1.235 0.000 0.000
y 0.000 2.479 0.000
z 0.000 0.000 -3.714
Polar
3z2-r2-7.428
x2-y2-0.830
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.360 0.000 0.000
y 0.000 4.364 0.000
z 0.000 0.000 2.973


<r2> (average value of r2) Å2
<r2> 36.553
(<r2>)1/2 6.046