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

using model chemistry: M06-2X/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 M06-2X/6-31G*
 hartrees
Energy at 0K-153.716522
Energy at 298.15K 
HF Energy-153.716522
Nuclear repulsion energy75.580656
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*
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 3153 2986 9.61 194.03 0.10 0.18
2 A1 1583 1499 4.85 3.23 0.63 0.78
3 A1 1346 1274 16.01 25.66 0.18 0.31
4 A1 1183 1120 0.10 0.99 0.54 0.70
5 A1 944 894 59.23 12.52 0.73 0.85
6 A2 3232 3061 0.00 106.49 0.75 0.86
7 A2 1186 1123 0.00 5.31 0.75 0.86
8 A2 1059 1003 0.00 0.30 0.75 0.86
9 B1 3246 3074 48.64 13.91 0.75 0.86
10 B1 1192 1129 4.26 15.65 0.75 0.86
11 B1 822 778 0.05 8.53 0.75 0.86
12 B2 3146 2979 30.31 8.86 0.75 0.86
13 B2 1531 1449 0.68 6.71 0.75 0.86
14 B2 1156 1094 1.21 3.55 0.75 0.86
15 B2 945 895 10.84 5.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12861.1 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 12179.4 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*
ABC
0.87340 0.73811 0.47760

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.844
C2 0.000 0.734 -0.367
C3 0.000 -0.734 -0.367
H4 0.921 1.269 -0.588
H5 -0.921 1.269 -0.588
H6 -0.921 -1.269 -0.588
H7 0.921 -1.269 -0.588

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41541.41542.12292.12292.12292.1229
C21.41541.46791.08791.08792.21542.2154
C31.41541.46792.21542.21541.08791.0879
H42.12291.08792.21541.84263.13592.5374
H52.12291.08792.21541.84262.53743.1359
H62.12292.21541.08793.13592.53741.8426
H72.12292.21541.08792.53743.13591.8426

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 58.767 O1 C2 H4 115.372
O1 C2 H5 115.372 O1 C3 C2 58.767
O1 C3 H6 115.372 O1 C3 H7 115.372
C2 O1 C3 62.467 C2 C3 H6 119.442
C2 C3 H7 119.442 C3 C2 H4 119.442
C3 C2 H5 119.442 H4 C2 H5 115.742
H6 C3 H7 115.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.440      
2 C -0.126      
3 C -0.126      
4 H 0.173      
5 H 0.173      
6 H 0.173      
7 H 0.173      


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 -1.978 1.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.174 0.000 0.000
y 0.000 -16.278 0.000
z 0.000 0.000 -20.434
Traceless
 xyz
x 1.182 0.000 0.000
y 0.000 2.526 0.000
z 0.000 0.000 -3.708
Polar
3z2-r2-7.416
x2-y2-0.896
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.304 0.000 0.000
y 0.000 4.205 0.000
z 0.000 0.000 2.619


<r2> (average value of r2) Å2
<r2> 36.205
(<r2>)1/2 6.017