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

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-153.731640
Energy at 298.15K 
HF Energy-153.731640
Nuclear repulsion energy75.744511
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 M06-2X/6-31G(2df,p)
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 3130 2981 10.38 188.92 0.10 0.18
2 A1 1556 1482 3.71 3.19 0.55 0.71
3 A1 1342 1278 16.21 25.44 0.17 0.29
4 A1 1174 1118 0.06 1.23 0.38 0.55
5 A1 945 900 54.07 10.95 0.71 0.83
6 A2 3211 3058 0.00 102.68 0.75 0.86
7 A2 1171 1116 0.00 3.90 0.75 0.86
8 A2 1059 1009 0.00 0.28 0.75 0.86
9 B1 3225 3072 40.69 13.51 0.75 0.86
10 B1 1189 1133 4.82 12.08 0.75 0.86
11 B1 815 776 0.01 6.43 0.75 0.86
12 B2 3121 2973 30.06 8.84 0.75 0.86
13 B2 1506 1434 0.13 6.00 0.75 0.86
14 B2 1161 1106 0.28 2.32 0.75 0.86
15 B2 943 898 9.55 4.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12773.6 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 12165.5 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 M06-2X/6-31G(2df,p)
ABC
0.87821 0.74042 0.47981

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.841
C2 0.000 0.733 -0.365
C3 0.000 -0.733 -0.365
H4 0.920 1.266 -0.588
H5 -0.920 1.266 -0.588
H6 -0.920 -1.266 -0.588
H7 0.920 -1.266 -0.588

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41121.41122.11942.11942.11942.1194
C21.41121.46591.08671.08672.21192.2119
C31.41121.46592.21192.21191.08671.0867
H42.11941.08672.21191.84063.13022.5319
H52.11941.08672.21191.84062.53193.1302
H62.11942.21191.08673.13022.53191.8406
H72.11942.21191.08672.53193.13021.8406

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 58.710 O1 C2 H4 115.483
O1 C2 H5 115.483 O1 C3 C2 58.710
O1 C3 H6 115.483 O1 C3 H7 115.483
C2 O1 C3 62.580 C2 C3 H6 119.374
C2 C3 H7 119.374 C3 C2 H4 119.374
C3 C2 H5 119.374 H4 C2 H5 115.752
H6 C3 H7 115.752
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.260      
2 C -0.137      
3 C -0.137      
4 H 0.133      
5 H 0.133      
6 H 0.133      
7 H 0.133      


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 -1.781 1.781
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.094 0.000 0.000
y 0.000 -16.330 0.000
z 0.000 0.000 -20.271
Traceless
 xyz
x 1.207 0.000 0.000
y 0.000 2.352 0.000
z 0.000 0.000 -3.559
Polar
3z2-r2-7.118
x2-y2-0.763
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.487 0.000 0.000
y 0.000 4.341 0.000
z 0.000 0.000 2.860


<r2> (average value of r2) Å2
<r2> 36.063
(<r2>)1/2 6.005