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

using model chemistry: B3LYPultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/TZVP
 hartrees
Energy at 0K-153.845580
Energy at 298.15K 
HF Energy-153.845580
Nuclear repulsion energy75.218240
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 B3LYPultrafine/TZVP
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 2978 14.00 235.21 0.09 0.16
2 A1 1542 1486 3.10 2.00 0.70 0.82
3 A1 1296 1248 13.59 28.39 0.13 0.24
4 A1 1146 1104 0.01 1.86 0.37 0.54
5 A1 884 851 72.66 11.68 0.74 0.85
6 A2 3165 3049 0.00 115.73 0.75 0.86
7 A2 1178 1135 0.00 1.73 0.75 0.86
8 A2 1041 1003 0.00 0.05 0.75 0.86
9 B1 3180 3064 49.66 19.85 0.75 0.86
10 B1 1168 1125 3.53 9.28 0.75 0.86
11 B1 821 791 0.01 6.62 0.75 0.86
12 B2 3085 2972 38.89 12.02 0.75 0.86
13 B2 1510 1454 0.00 6.30 0.75 0.86
14 B2 1147 1105 4.06 3.23 0.75 0.86
15 B2 839 808 12.48 3.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12545.8 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 12086.6 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 B3LYPultrafine/TZVP
ABC
0.85420 0.74008 0.47210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/TZVP

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 1.269 -0.593
H5 -0.919 1.269 -0.593
H6 -0.919 -1.269 -0.593
H7 0.919 -1.269 -0.593

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43031.43032.13332.13332.13332.1333
C21.43031.46541.08621.08622.21332.2133
C31.43031.46542.21332.21331.08621.0862
H42.13331.08622.21331.83743.13302.5377
H52.13331.08622.21331.83742.53773.1330
H62.13332.21331.08623.13302.53771.8374
H72.13332.21331.08622.53773.13301.8374

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 59.183 O1 C2 H4 115.253
O1 C2 H5 115.253 O1 C3 C2 59.183
O1 C3 H6 115.253 O1 C3 H7 115.253
C2 O1 C3 61.635 C2 C3 H6 119.576
C2 C3 H7 119.576 C3 C2 H4 119.576
C3 C2 H5 119.576 H4 C2 H5 115.523
H6 C3 H7 115.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.272      
2 C -0.112      
3 C -0.112      
4 H 0.124      
5 H 0.124      
6 H 0.124      
7 H 0.124      


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 -2.074 2.074
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.501 0.000 0.000
y 0.000 -16.568 0.000
z 0.000 0.000 -21.016
Traceless
 xyz
x 1.291 0.000 0.000
y 0.000 2.690 0.000
z 0.000 0.000 -3.981
Polar
3z2-r2-7.963
x2-y2-0.933
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.619 0.000 0.000
y 0.000 4.641 0.000
z 0.000 0.000 3.316


<r2> (average value of r2) Å2
<r2> 36.654
(<r2>)1/2 6.054