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

using model chemistry: PBE1PBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/Def2TZVPP
 hartrees
Energy at 0K-153.675804
Energy at 298.15K 
HF Energy-153.675804
Nuclear repulsion energy75.725691
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 PBE1PBE/Def2TZVPP
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 3111 3111 14.28 235.17 0.08 0.14
2 A1 1544 1544 3.41 1.88 0.39 0.56
3 A1 1327 1327 15.48 28.48 0.14 0.24
4 A1 1159 1159 0.08 0.91 0.36 0.53
5 A1 928 928 68.93 9.66 0.71 0.83
6 A2 3188 3188 0.00 110.20 0.75 0.86
7 A2 1173 1173 0.00 1.31 0.75 0.86
8 A2 1053 1053 0.00 0.07 0.75 0.86
9 B1 3204 3204 41.37 18.36 0.75 0.86
10 B1 1179 1179 3.63 7.00 0.75 0.86
11 B1 818 818 0.05 4.72 0.75 0.86
12 B2 3103 3103 37.03 10.46 0.75 0.86
13 B2 1500 1500 0.11 4.95 0.75 0.86
14 B2 1159 1159 1.26 1.48 0.75 0.86
15 B2 899 899 12.55 3.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12671.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12671.6 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 PBE1PBE/Def2TZVPP
ABC
0.87068 0.74597 0.47970

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/Def2TZVPP

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 0.920 1.263 -0.588
H5 -0.920 1.263 -0.588
H6 -0.920 -1.263 -0.588
H7 0.920 -1.263 -0.588

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41541.41542.12082.12082.12082.1208
C21.41541.45811.08621.08622.20542.2054
C31.41541.45812.20542.20541.08621.0862
H42.12081.08622.20541.83913.12512.5267
H52.12081.08622.20541.83912.52673.1251
H62.12082.20541.08623.12512.52671.8391
H72.12082.20541.08622.52673.12511.8391

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 58.998 O1 C2 H4 115.314
O1 C2 H5 115.314 O1 C3 C2 58.998
O1 C3 H6 115.314 O1 C3 H7 115.314
C2 O1 C3 62.004 C2 C3 H6 119.467
C2 C3 H7 119.467 C3 C2 H4 119.467
C3 C2 H5 119.467 H4 C2 H5 115.684
H6 C3 H7 115.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.318      
2 C -0.001      
3 C -0.001      
4 H 0.080      
5 H 0.080      
6 H 0.080      
7 H 0.080      


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 -1.836 1.836
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.302 0.000 0.000
y 0.000 -16.481 0.000
z 0.000 0.000 -20.681
Traceless
 xyz
x 1.279 0.000 0.000
y 0.000 2.511 0.000
z 0.000 0.000 -3.790
Polar
3z2-r2-7.580
x2-y2-0.821
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.706 0.000 0.000
y 0.000 4.668 0.000
z 0.000 0.000 3.483


<r2> (average value of r2) Å2
<r2> 36.210
(<r2>)1/2 6.017