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

using model chemistry: HSEh1PBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-153.682321
Energy at 298.15K 
HF Energy-153.682321
Nuclear repulsion energy75.708340
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/cc-pVTZ
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 2986 14.83 234.73 0.08 0.14
2 A1 1544 1484 3.18 1.53 0.52 0.69
3 A1 1325 1274 15.60 27.50 0.15 0.25
4 A1 1158 1113 0.04 0.93 0.54 0.70
5 A1 928 891 66.95 9.65 0.71 0.83
6 A2 3182 3059 0.00 114.25 0.75 0.86
7 A2 1174 1128 0.00 1.64 0.75 0.86
8 A2 1053 1012 0.00 0.04 0.75 0.86
9 B1 3198 3074 45.55 18.48 0.75 0.86
10 B1 1179 1133 3.47 7.83 0.75 0.86
11 B1 819 787 0.02 4.87 0.75 0.86
12 B2 3099 2979 39.37 10.02 0.75 0.86
13 B2 1501 1442 0.03 5.04 0.75 0.86
14 B2 1156 1111 1.34 1.27 0.75 0.86
15 B2 895 860 12.23 3.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12658.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 12166.0 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/cc-pVTZ
ABC
0.86940 0.74635 0.47937

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.846
C2 0.000 0.729 -0.368
C3 0.000 -0.729 -0.368
H4 0.919 1.263 -0.590
H5 -0.919 1.263 -0.590
H6 -0.919 -1.263 -0.590
H7 0.919 -1.263 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41621.41622.12202.12202.12202.1220
C21.41621.45781.08601.08602.20492.2049
C31.41621.45782.20492.20491.08601.0860
H42.12201.08602.20491.83823.12392.5259
H52.12201.08602.20491.83822.52593.1239
H62.12202.20491.08603.12392.52591.8382
H72.12202.20491.08602.52593.12391.8382

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 59.022 O1 C2 H4 115.377
O1 C2 H5 115.377 O1 C3 C2 59.022
O1 C3 H6 115.377 O1 C3 H7 115.377
C2 O1 C3 61.956 C2 C3 H6 119.456
C2 C3 H7 119.456 C3 C2 H4 119.456
C3 C2 H5 119.456 H4 C2 H5 115.632
H6 C3 H7 115.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.277      
2 C -0.044      
3 C -0.044      
4 H 0.091      
5 H 0.091      
6 H 0.091      
7 H 0.091      


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 -1.829 1.829
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.254 0.000 0.000
y 0.000 -16.475 0.000
z 0.000 0.000 -20.538
Traceless
 xyz
x 1.253 0.000 0.000
y 0.000 2.421 0.000
z 0.000 0.000 -3.673
Polar
3z2-r2-7.347
x2-y2-0.779
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.619 0.000 0.000
y 0.000 4.577 0.000
z 0.000 0.000 3.319


<r2> (average value of r2) Å2
<r2> 36.180
(<r2>)1/2 6.015