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

using model chemistry: BLYP/daug-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 BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-153.799397
Energy at 298.15K 
HF Energy-153.799397
Nuclear repulsion energy74.456578
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/daug-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 3009 3009 19.10 271.02 0.06 0.12
2 A1 1490 1490 2.25 2.44 0.63 0.77
3 A1 1245 1245 13.63 29.16 0.11 0.20
4 A1 1101 1101 0.13 4.94 0.13 0.23
5 A1 839 839 65.73 8.43 0.75 0.86
6 A2 3078 3078 0.00 128.02 0.75 0.86
7 A2 1145 1145 0.00 0.84 0.75 0.86
8 A2 1010 1010 0.00 0.02 0.75 0.86
9 B1 3093 3093 48.34 30.03 0.75 0.86
10 B1 1125 1125 2.73 3.51 0.75 0.86
11 B1 797 797 0.10 3.80 0.75 0.86
12 B2 3005 3005 41.20 12.95 0.75 0.86
13 B2 1467 1467 0.00 3.97 0.75 0.86
14 B2 1124 1124 0.36 0.33 0.75 0.86
15 B2 775 775 10.76 2.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12150.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12150.6 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 BLYP/daug-cc-pVTZ
ABC
0.82965 0.73122 0.46191

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.870
C2 0.000 0.737 -0.381
C3 0.000 -0.737 -0.381
H4 0.924 1.276 -0.597
H5 -0.924 1.276 -0.597
H6 -0.924 -1.276 -0.597
H7 0.924 -1.276 -0.597

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.45131.45132.15272.15272.15272.1527
C21.45131.47471.09111.09112.22602.2260
C31.45131.47472.22602.22601.09111.0911
H42.15271.09112.22601.84713.15092.5526
H52.15271.09112.22601.84712.55263.1509
H62.15272.22601.09113.15092.55261.8471
H72.15272.22601.09112.55263.15091.8471

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 59.465 O1 C2 H4 114.973
O1 C2 H5 114.973 O1 C3 C2 59.465
O1 C3 H6 114.973 O1 C3 H7 114.973
C2 O1 C3 61.069 C2 C3 H6 119.601
C2 C3 H7 119.601 C3 C2 H4 119.601
C3 C2 H5 119.601 H4 C2 H5 115.655
H6 C3 H7 115.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.818      
2 C -0.505      
3 C -0.505      
4 H 0.457      
5 H 0.457      
6 H 0.457      
7 H 0.457      


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 -1.883 1.883
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.838 0.000 0.000
y 0.000 -16.874 0.000
z 0.000 0.000 -21.238
Traceless
 xyz
x 1.217 0.000 0.000
y 0.000 2.665 0.000
z 0.000 0.000 -3.882
Polar
3z2-r2-7.764
x2-y2-0.965
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.225 0.000 0.000
y 0.000 5.108 0.000
z 0.000 0.000 4.286


<r2> (average value of r2) Å2
<r2> 37.315
(<r2>)1/2 6.109