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

using model chemistry: B3LYPultrafine/6-31G**

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/6-31G**
 hartrees
Energy at 0K-153.791950
Energy at 298.15K 
HF Energy-153.791950
Nuclear repulsion energy75.098300
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/6-31G**
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 3098 2977 12.43 196.42 0.09 0.17
2 A1 1560 1499 3.91 3.99 0.75 0.86
3 A1 1310 1259 12.13 22.95 0.17 0.29
4 A1 1159 1114 0.20 2.61 0.44 0.61
5 A1 901 865 56.44 11.75 0.75 0.85
6 A2 3172 3048 0.00 109.77 0.75 0.86
7 A2 1181 1135 0.00 5.05 0.75 0.86
8 A2 1042 1001 0.00 0.20 0.75 0.86
9 B1 3188 3063 60.68 15.52 0.75 0.86
10 B1 1170 1124 2.76 15.25 0.75 0.86
11 B1 818 786 0.09 9.11 0.75 0.86
12 B2 3090 2969 40.13 9.71 0.75 0.86
13 B2 1520 1461 0.77 6.97 0.75 0.86
14 B2 1146 1101 1.71 3.66 0.75 0.86
15 B2 860 826 12.60 4.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12607.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 12113.5 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/6-31G**
ABC
0.85376 0.73600 0.47058

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.856
C2 0.000 0.735 -0.372
C3 0.000 -0.735 -0.372
H4 0.920 1.274 -0.596
H5 -0.920 1.274 -0.596
H6 -0.920 -1.274 -0.596
H7 0.920 -1.274 -0.596

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43031.43032.13952.13952.13952.1395
C21.43031.46921.08991.08992.22052.2205
C31.43031.46922.22052.22051.08991.0899
H42.13951.08992.22051.84033.14272.5475
H52.13951.08992.22051.84032.54753.1427
H62.13952.22051.08993.14272.54751.8403
H72.13952.22051.08992.54753.14271.8403

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 59.098 O1 C2 H4 115.533
O1 C2 H5 115.533 O1 C3 C2 59.098
O1 C3 H6 115.533 O1 C3 H7 115.533
C2 O1 C3 61.805 C2 C3 H6 119.651
C2 C3 H7 119.651 C3 C2 H4 119.651
C3 C2 H5 119.651 H4 C2 H5 115.179
H6 C3 H7 115.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.439      
2 C -0.005      
3 C -0.005      
4 H 0.112      
5 H 0.112      
6 H 0.112      
7 H 0.112      


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 -1.948 1.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.222 0.000 0.000
y 0.000 -16.322 0.000
z 0.000 0.000 -20.300
Traceless
 xyz
x 1.089 0.000 0.000
y 0.000 2.439 0.000
z 0.000 0.000 -3.527
Polar
3z2-r2-7.055
x2-y2-0.900
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.314 0.000 0.000
y 0.000 4.233 0.000
z 0.000 0.000 2.728


<r2> (average value of r2) Å2
<r2> 36.499
(<r2>)1/2 6.041