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

using model chemistry: TPSSh/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-311+G(3df,2p)
 hartrees
Energy at 0K-153.855797
Energy at 298.15K 
HF Energy-153.855797
Nuclear repulsion energy75.286266
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 TPSSh/6-311+G(3df,2p)
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 3087 3087 17.29 229.71 0.07 0.13
2 A1 1541 1541 2.71 2.90 0.35 0.51
3 A1 1303 1303 15.14 29.57 0.12 0.21
4 A1 1153 1153 0.00 3.72 0.17 0.28
5 A1 906 906 69.57 8.16 0.73 0.84
6 A2 3161 3161 0.00 116.21 0.75 0.86
7 A2 1177 1177 0.00 1.37 0.75 0.86
8 A2 1049 1049 0.00 0.02 0.75 0.86
9 B1 3177 3177 46.22 22.38 0.75 0.86
10 B1 1170 1170 3.75 3.95 0.75 0.86
11 B1 812 812 0.17 2.90 0.75 0.86
12 B2 3080 3080 39.83 10.43 0.75 0.86
13 B2 1510 1510 0.01 3.45 0.75 0.86
14 B2 1162 1162 0.14 0.33 0.75 0.86
15 B2 858 858 10.21 3.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12572.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12572.6 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 TPSSh/6-311+G(3df,2p)
ABC
0.85591 0.74127 0.47331

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311+G(3df,2p)

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 -0.374
C3 0.000 -0.732 -0.374
H4 0.920 1.268 -0.587
H5 -0.920 1.268 -0.587
H6 -0.920 -1.268 -0.587
H7 0.920 -1.268 -0.587

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42931.42932.12832.12832.12832.1283
C21.42931.46341.08581.08582.21142.2114
C31.42931.46342.21142.21141.08581.0858
H42.12831.08582.21141.83953.13312.5362
H52.12831.08582.21141.83952.53623.1331
H62.12832.21141.08583.13312.53621.8395
H72.12832.21141.08582.53623.13311.8395

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 59.209 O1 C2 H4 114.919
O1 C2 H5 114.919 O1 C3 C2 59.209
O1 C3 H6 114.919 O1 C3 H7 114.919
C2 O1 C3 61.581 C2 C3 H6 119.606
C2 C3 H7 119.606 C3 C2 H4 119.606
C3 C2 H5 119.606 H4 C2 H5 115.784
H6 C3 H7 115.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.561      
2 C 0.112      
3 C 0.112      
4 H 0.085      
5 H 0.085      
6 H 0.085      
7 H 0.085      


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 -1.881 1.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.876 0.000 0.000
y 0.000 4.766 0.000
z 0.000 0.000 3.885


<r2> (average value of r2) Å2
<r2> 36.518
(<r2>)1/2 6.043