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

using model chemistry: B3LYPultrafine/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-153.792420
Energy at 298.15K 
HF Energy-153.792420
Nuclear repulsion energy74.965945
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/cc-pVDZ
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 3079 2986 11.25 233.57 0.09 0.17
2 A1 1522 1477 3.97 2.68 0.68 0.81
3 A1 1301 1262 12.53 26.02 0.19 0.33
4 A1 1139 1104 0.27 1.46 0.52 0.69
5 A1 893 866 58.89 11.28 0.73 0.84
6 A2 3157 3062 0.00 130.71 0.75 0.86
7 A2 1159 1124 0.00 4.13 0.75 0.86
8 A2 1025 995 0.00 0.10 0.75 0.86
9 B1 3173 3077 60.02 18.88 0.75 0.86
10 B1 1154 1119 3.36 13.16 0.75 0.86
11 B1 809 785 0.00 7.74 0.75 0.86
12 B2 3069 2977 39.56 10.47 0.75 0.86
13 B2 1476 1432 0.26 6.88 0.75 0.86
14 B2 1129 1095 0.90 2.45 0.75 0.86
15 B2 850 825 11.04 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12466.6 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 12092.6 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/cc-pVDZ
ABC
0.85174 0.73247 0.46993

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.856
C2 0.000 0.736 -0.371
C3 0.000 -0.736 -0.371
H4 0.927 1.276 -0.598
H5 -0.927 1.276 -0.598
H6 -0.927 -1.276 -0.598
H7 0.927 -1.276 -0.598

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43011.43012.14512.14512.14512.1451
C21.43011.47101.09721.09722.22672.2267
C31.43011.47102.22672.22671.09721.0972
H42.14511.09722.22671.85473.15502.5522
H52.14511.09722.22671.85472.55223.1550
H62.14512.22671.09723.15502.55221.8547
H72.14512.22671.09722.55223.15501.8547

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 59.050 O1 C2 H4 115.528
O1 C2 H5 115.528 O1 C3 C2 59.050
O1 C3 H6 115.528 O1 C3 H7 115.528
C2 O1 C3 61.900 C2 C3 H6 119.518
C2 C3 H7 119.518 C3 C2 H4 119.518
C3 C2 H5 119.518 H4 C2 H5 115.389
H6 C3 H7 115.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.284      
2 C 0.085      
3 C 0.085      
4 H 0.028      
5 H 0.028      
6 H 0.028      
7 H 0.028      


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 -1.808 1.808
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.295 0.000 0.000
y 0.000 -16.603 0.000
z 0.000 0.000 -20.262
Traceless
 xyz
x 1.138 0.000 0.000
y 0.000 2.176 0.000
z 0.000 0.000 -3.313
Polar
3z2-r2-6.627
x2-y2-0.692
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.399 0.000 0.000
y 0.000 4.358 0.000
z 0.000 0.000 2.815


<r2> (average value of r2) Å2
<r2> 36.659
(<r2>)1/2 6.055