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

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-153.663910
Energy at 298.15K 
HF Energy-153.663910
Nuclear repulsion energy75.602759
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 HSEh1PBE/6-311G**
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 3107 2984 12.62 220.82 0.09 0.17
2 A1 1548 1486 3.87 1.50 0.60 0.75
3 A1 1328 1276 16.10 25.85 0.16 0.28
4 A1 1154 1108 0.03 0.72 0.64 0.78
5 A1 926 889 70.10 10.84 0.73 0.84
6 A2 3183 3057 0.00 116.55 0.75 0.86
7 A2 1172 1125 0.00 2.67 0.75 0.86
8 A2 1048 1007 0.00 0.09 0.75 0.86
9 B1 3198 3071 56.81 17.87 0.75 0.86
10 B1 1178 1132 4.09 10.66 0.75 0.86
11 B1 820 787 0.02 6.13 0.75 0.86
12 B2 3097 2975 40.44 10.18 0.75 0.86
13 B2 1502 1442 0.02 6.16 0.75 0.86
14 B2 1142 1097 2.71 1.96 0.75 0.86
15 B2 893 858 12.37 3.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12647.2 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 12146.4 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 HSEh1PBE/6-311G**
ABC
0.86850 0.74305 0.47799

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.847
C2 0.000 0.731 -0.368
C3 0.000 -0.731 -0.368
H4 0.920 1.266 -0.591
H5 -0.920 1.266 -0.591
H6 -0.920 -1.266 -0.591
H7 0.920 -1.266 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41721.41722.12532.12532.12532.1253
C21.41721.46121.08791.08792.20982.2098
C31.41721.46122.20982.20981.08791.0879
H42.12531.08792.20981.84073.13032.5320
H52.12531.08792.20981.84072.53203.1303
H62.12532.20981.08793.13032.53201.8407
H72.12532.20981.08792.53203.13031.8407

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 58.967 O1 C2 H4 115.441
O1 C2 H5 115.441 O1 C3 C2 58.967
O1 C3 H6 115.441 O1 C3 H7 115.441
C2 O1 C3 62.066 C2 C3 H6 119.480
C2 C3 H7 119.480 C3 C2 H4 119.480
C3 C2 H5 119.480 H4 C2 H5 115.555
H6 C3 H7 115.555
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.300      
2 C -0.110      
3 C -0.110      
4 H 0.130      
5 H 0.130      
6 H 0.130      
7 H 0.130      


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 -1.925 1.925
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.175 0.000 0.000
y 0.000 -16.383 0.000
z 0.000 0.000 -20.541
Traceless
 xyz
x 1.286 0.000 0.000
y 0.000 2.475 0.000
z 0.000 0.000 -3.762
Polar
3z2-r2-7.523
x2-y2-0.793
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.384 0.000 0.000
y 0.000 4.369 0.000
z 0.000 0.000 2.947


<r2> (average value of r2) Å2
<r2> 36.222
(<r2>)1/2 6.018