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

using model chemistry: B3LYP/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/cc-pCVTZ
 hartrees
Energy at 0K-153.852137
Energy at 298.15K-153.856815
Nuclear repulsion energy75.350908
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 B3LYP/cc-pCVTZ
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 3086 3086 15.22      
2 A1 1540 1540 2.60      
3 A1 1300 1300 14.39      
4 A1 1149 1149 0.00      
5 A1 891 891 64.39      
6 A2 3158 3158 0.00      
7 A2 1176 1176 0.00      
8 A2 1045 1045 0.00      
9 B1 3173 3173 50.25      
10 B1 1170 1170 3.39      
11 B1 819 819 0.01      
12 B2 3079 3079 42.36      
13 B2 1506 1506 0.02      
14 B2 1156 1156 1.48      
15 B2 846 846 11.65      

Unscaled Zero Point Vibrational Energy (zpe) 12547.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12547.3 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 B3LYP/cc-pCVTZ
ABC
0.85765 0.74231 0.47382

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pCVTZ

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
O11.42711.42712.13032.13032.13032.1303
C21.42711.46341.08481.08482.20992.2099
C31.42711.46342.20992.20991.08481.0848
H42.13031.08482.20991.83503.12802.5332
H52.13031.08482.20991.83502.53323.1280
H62.13032.20991.08483.12802.53321.8350
H72.13032.20991.08482.53323.12801.8350

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 59.156 O1 C2 H4 115.330
O1 C2 H5 115.330 O1 C3 C2 59.156
O1 C3 H6 115.330 O1 C3 H7 115.330
C2 O1 C3 61.688 C2 C3 H6 119.543
C2 C3 H7 119.543 C3 C2 H4 119.543
C3 C2 H5 119.543 H4 C2 H5 115.507
H6 C3 H7 115.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.310      
2 C -0.036      
3 C -0.036      
4 H 0.095      
5 H 0.095      
6 H 0.095      
7 H 0.095      


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 -1.893 1.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.420 0.000 0.000
y 0.000 -16.589 0.000
z 0.000 0.000 -20.667
Traceless
 xyz
x 1.208 0.000 0.000
y 0.000 2.454 0.000
z 0.000 0.000 -3.662
Polar
3z2-r2-7.325
x2-y2-0.831
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.641 0.000 0.000
y 0.000 4.619 0.000
z 0.000 0.000 3.365


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000