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

using model chemistry: B3LYP/daug-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 B3LYP/daug-cc-pVTZ
 hartrees
Energy at 0K-153.852760
Energy at 298.15K 
HF Energy-153.852760
Nuclear repulsion energy75.298445
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/daug-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 3091 3091 16.80 249.95 0.06 0.12
2 A1 1538 1538 2.53 2.25 0.42 0.59
3 A1 1299 1299 15.76 30.26 0.11 0.20
4 A1 1149 1149 0.00 3.91 0.15 0.27
5 A1 887 887 71.66 8.14 0.73 0.84
6 A2 3164 3164 0.00 113.18 0.75 0.86
7 A2 1177 1177 0.00 0.79 0.75 0.86
8 A2 1048 1048 0.00 0.03 0.75 0.86
9 B1 3179 3179 40.73 22.89 0.75 0.86
10 B1 1169 1169 4.05 3.35 0.75 0.86
11 B1 819 819 0.21 2.89 0.75 0.86
12 B2 3085 3085 36.85 10.51 0.75 0.86
13 B2 1506 1506 0.10 3.51 0.75 0.86
14 B2 1167 1167 0.25 0.24 0.75 0.86
15 B2 843 843 10.74 3.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12560.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12560.9 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 B3LYP/daug-cc-pVTZ
ABC
0.85540 0.74215 0.47314

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.855
C2 0.000 0.732 -0.373
C3 0.000 -0.732 -0.373
H4 0.918 1.267 -0.590
H5 -0.918 1.267 -0.590
H6 -0.918 -1.267 -0.590
H7 0.918 -1.267 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42961.42962.12952.12952.12952.1295
C21.42961.46331.08441.08442.20992.2099
C31.42961.46332.20992.20991.08441.0844
H42.12951.08442.20991.83583.12912.5340
H52.12951.08442.20991.83582.53403.1291
H62.12952.20991.08443.12912.53401.8358
H72.12952.20991.08442.53403.12911.8358

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 59.217 O1 C2 H4 115.095
O1 C2 H5 115.095 O1 C3 C2 59.217
O1 C3 H6 115.095 O1 C3 H7 115.095
C2 O1 C3 61.566 C2 C3 H6 119.583
C2 C3 H7 119.583 C3 C2 H4 119.583
C3 C2 H5 119.583 H4 C2 H5 115.651
H6 C3 H7 115.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.840      
2 C -0.587      
3 C -0.587      
4 H 0.504      
5 H 0.504      
6 H 0.504      
7 H 0.504      


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 -1.917 1.917
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.564 0.000 0.000
y 0.000 -16.617 0.000
z 0.000 0.000 -21.069
Traceless
 xyz
x 1.279 0.000 0.000
y 0.000 2.700 0.000
z 0.000 0.000 -3.979
Polar
3z2-r2-7.957
x2-y2-0.948
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.994 0.000 0.000
y 0.000 4.876 0.000
z 0.000 0.000 4.025


<r2> (average value of r2) Å2
<r2> 36.627
(<r2>)1/2 6.052