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

using model chemistry: BLYP/aug-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 BLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-153.754615
Energy at 298.15K 
HF Energy-153.754615
Nuclear repulsion energy73.997653
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 BLYP/aug-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 3014 3008 19.41 271.12 0.07 0.12
2 A1 1475 1473 1.98 2.82 0.51 0.68
3 A1 1244 1242 13.33 30.10 0.11 0.21
4 A1 1092 1090 0.45 4.59 0.17 0.28
5 A1 833 831 65.59 9.55 0.75 0.86
6 A2 3094 3088 0.00 132.47 0.75 0.86
7 A2 1127 1125 0.00 0.80 0.75 0.86
8 A2 994 992 0.00 0.03 0.75 0.86
9 B1 3108 3102 48.98 31.04 0.75 0.86
10 B1 1108 1106 2.29 3.79 0.75 0.86
11 B1 784 783 0.07 4.40 0.75 0.86
12 B2 3010 3004 40.37 13.08 0.75 0.86
13 B2 1448 1445 0.02 3.72 0.75 0.86
14 B2 1104 1102 0.22 0.43 0.75 0.86
15 B2 764 762 10.32 3.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12099.4 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 12076.4 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 BLYP/aug-cc-pVDZ
ABC
0.81949 0.72227 0.45673

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.874
C2 0.000 0.741 -0.384
C3 0.000 -0.741 -0.384
H4 0.932 1.285 -0.598
H5 -0.932 1.285 -0.598
H6 -0.932 -1.285 -0.598
H7 0.932 -1.285 -0.598

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.45991.45992.16502.16502.16502.1650
C21.45991.48221.10011.10012.24052.2405
C31.45991.48222.24052.24051.10011.1001
H42.16501.10012.24051.86373.17472.5701
H52.16501.10012.24051.86372.57013.1747
H62.16502.24051.10013.17472.57011.8637
H72.16502.24051.10012.57013.17471.8637

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 59.493 O1 C2 H4 114.771
O1 C2 H5 114.771 O1 C3 C2 59.493
O1 C3 H6 114.771 O1 C3 H7 114.771
C2 O1 C3 61.015 C2 C3 H6 119.632
C2 C3 H7 119.632 C3 C2 H4 119.632
C3 C2 H5 119.632 H4 C2 H5 115.787
H6 C3 H7 115.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.505      
2 C 1.439      
3 C 1.439      
4 H -0.593      
5 H -0.593      
6 H -0.593      
7 H -0.593      


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 -1.895 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.891 0.000 0.000
y 0.000 -16.970 0.000
z 0.000 0.000 -21.334
Traceless
 xyz
x 1.260 0.000 0.000
y 0.000 2.643 0.000
z 0.000 0.000 -3.904
Polar
3z2-r2-7.807
x2-y2-0.922
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.204 0.000 0.000
y 0.000 5.157 0.000
z 0.000 0.000 4.269


<r2> (average value of r2) Å2
<r2> 37.680
(<r2>)1/2 6.138