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

using model chemistry: B3LYP/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-153.852564
Energy at 298.15K 
HF Energy-153.852564
Nuclear repulsion energy75.296659
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/aug-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 3092 2992 16.80 249.63 0.06 0.12
2 A1 1538 1488 2.49 2.31 0.42 0.59
3 A1 1299 1257 15.76 30.24 0.11 0.20
4 A1 1149 1112 0.00 3.78 0.17 0.29
5 A1 888 859 71.66 8.24 0.73 0.84
6 A2 3165 3062 0.00 113.45 0.75 0.86
7 A2 1177 1139 0.00 0.78 0.75 0.86
8 A2 1048 1014 0.00 0.03 0.75 0.86
9 B1 3180 3076 40.63 22.96 0.75 0.86
10 B1 1169 1131 4.05 3.40 0.75 0.86
11 B1 819 793 0.22 2.92 0.75 0.86
12 B2 3086 2986 36.82 10.46 0.75 0.86
13 B2 1506 1457 0.10 3.48 0.75 0.86
14 B2 1168 1130 0.26 0.24 0.75 0.86
15 B2 843 815 10.70 3.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12562.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 12154.3 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/aug-cc-pVTZ
ABC
0.85531 0.74216 0.47312

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-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
H42.12951.08442.20991.83583.12912.5339
H52.12951.08442.20991.83582.53393.1291
H62.12952.20991.08443.12912.53391.8358
H72.12952.20991.08442.53393.12911.8358

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 59.219 O1 C2 H4 115.090
O1 C2 H5 115.090 O1 C3 C2 59.219
O1 C3 H6 115.090 O1 C3 H7 115.090
C2 O1 C3 61.562 C2 C3 H6 119.582
C2 C3 H7 119.582 C3 C2 H4 119.582
C3 C2 H5 119.582 H4 C2 H5 115.656
H6 C3 H7 115.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.568      
2 C -0.296      
3 C -0.296      
4 H 0.290      
5 H 0.290      
6 H 0.290      
7 H 0.290      


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 -1.918 1.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.563 0.000 0.000
y 0.000 -16.612 0.000
z 0.000 0.000 -21.081
Traceless
 xyz
x 1.284 0.000 0.000
y 0.000 2.710 0.000
z 0.000 0.000 -3.994
Polar
3z2-r2-7.988
x2-y2-0.951
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.975 0.000 0.000
y 0.000 4.866 0.000
z 0.000 0.000 4.016


<r2> (average value of r2) Å2
<r2> 36.629
(<r2>)1/2 6.052