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

using model chemistry: PBEPBE/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-153.626409
Energy at 298.15K 
HF Energy-153.626409
Nuclear repulsion energy74.456381
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 PBEPBE/daug-cc-pVDZ
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 3024 3024 19.70 279.27 0.06 0.11
2 A1 1473 1473 2.91 2.72 0.31 0.48
3 A1 1268 1268 13.07 30.97 0.11 0.20
4 A1 1085 1085 0.24 2.55 0.18 0.31
5 A1 873 873 65.88 8.12 0.73 0.85
6 A2 3109 3109 0.00 128.58 0.75 0.86
7 A2 1119 1119 0.00 0.79 0.75 0.86
8 A2 998 998 0.00 0.03 0.75 0.86
9 B1 3123 3123 46.37 30.37 0.75 0.86
10 B1 1114 1114 2.36 3.62 0.75 0.86
11 B1 781 781 0.08 4.17 0.75 0.86
12 B2 3019 3019 39.23 12.85 0.75 0.86
13 B2 1434 1434 0.10 3.83 0.75 0.86
14 B2 1093 1093 0.39 0.50 0.75 0.86
15 B2 818 818 11.70 2.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12164.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12164.8 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 PBEPBE/daug-cc-pVDZ
ABC
0.83445 0.72719 0.46351

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.865
C2 0.000 0.738 -0.378
C3 0.000 -0.738 -0.378
H4 0.933 1.280 -0.597
H5 -0.933 1.280 -0.597
H6 -0.933 -1.280 -0.597
H7 0.933 -1.280 -0.597

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44511.44512.15502.15502.15502.1550
C21.44511.47611.10071.10072.23372.2337
C31.44511.47612.23372.23371.10071.1007
H42.15501.10072.23371.86553.16722.5594
H52.15501.10072.23371.86552.55943.1672
H62.15502.23371.10073.16722.55941.8655
H72.15502.23371.10072.55943.16721.8655

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 59.290 O1 C2 H4 114.991
O1 C2 H5 114.991 O1 C3 C2 59.290
O1 C3 H6 114.991 O1 C3 H7 114.991
C2 O1 C3 61.420 C2 C3 H6 119.481
C2 C3 H7 119.481 C3 C2 H4 119.481
C3 C2 H5 119.481 H4 C2 H5 115.871
H6 C3 H7 115.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.553      
2 C 1.752      
3 C 1.752      
4 H -0.738      
5 H -0.738      
6 H -0.738      
7 H -0.738      


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 -1.792 1.792
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.726 0.000 0.000
y 0.000 -16.826 0.000
z 0.000 0.000 -21.094
Traceless
 xyz
x 1.234 0.000 0.000
y 0.000 2.584 0.000
z 0.000 0.000 -3.818
Polar
3z2-r2-7.636
x2-y2-0.900
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.270 0.000 0.000
y 0.000 5.134 0.000
z 0.000 0.000 4.248


<r2> (average value of r2) Å2
<r2> 37.272
(<r2>)1/2 6.105