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

using model chemistry: B3LYP/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 B3LYP/daug-cc-pVDZ
 hartrees
Energy at 0K-153.810290
Energy at 298.15K 
HF Energy-153.810290
Nuclear repulsion energy74.859286
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 B3LYP/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 3098 3098 17.16 255.52 0.06 0.12
2 A1 1524 1524 2.55 2.53 0.30 0.46
3 A1 1295 1295 14.54 31.70 0.11 0.20
4 A1 1129 1129 0.05 3.55 0.16 0.27
5 A1 880 880 71.88 8.46 0.74 0.85
6 A2 3183 3183 0.00 116.55 0.75 0.86
7 A2 1159 1159 0.00 0.80 0.75 0.86
8 A2 1034 1034 0.00 0.02 0.75 0.86
9 B1 3197 3197 41.41 23.32 0.75 0.86
10 B1 1152 1152 3.72 3.42 0.75 0.86
11 B1 806 806 0.20 3.17 0.75 0.86
12 B2 3093 3093 37.33 10.74 0.75 0.86
13 B2 1486 1486 0.11 3.37 0.75 0.86
14 B2 1144 1144 0.24 0.35 0.75 0.86
15 B2 831 831 10.74 3.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12505.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12505.3 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 B3LYP/daug-cc-pVDZ
ABC
0.84529 0.73363 0.46802

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.859
C2 0.000 0.735 -0.376
C3 0.000 -0.735 -0.376
H4 0.925 1.274 -0.591
H5 -0.925 1.274 -0.591
H6 -0.925 -1.274 -0.591
H7 0.925 -1.274 -0.591

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43781.43782.14102.14102.14102.1410
C21.43781.47091.09211.09212.22292.2229
C31.43781.47092.22292.22291.09211.0921
H42.14101.09212.22291.85053.14952.5486
H52.14101.09212.22291.85052.54863.1495
H62.14102.22291.09213.14952.54861.8505
H72.14102.22291.09212.54863.14951.8505

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 59.235 O1 C2 H4 114.939
O1 C2 H5 114.939 O1 C3 C2 59.235
O1 C3 H6 114.939 O1 C3 H7 114.939
C2 O1 C3 61.530 C2 C3 H6 119.563
C2 C3 H7 119.563 C3 C2 H4 119.563
C3 C2 H5 119.563 H4 C2 H5 115.818
H6 C3 H7 115.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.644      
2 C 2.012      
3 C 2.012      
4 H -0.845      
5 H -0.845      
6 H -0.845      
7 H -0.845      


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 -1.935 1.935
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.638 0.000 0.000
y 0.000 -16.682 0.000
z 0.000 0.000 -21.141
Traceless
 xyz
x 1.274 0.000 0.000
y 0.000 2.707 0.000
z 0.000 0.000 -3.981
Polar
3z2-r2-7.962
x2-y2-0.955
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.056 0.000 0.000
y 0.000 4.955 0.000
z 0.000 0.000 4.074


<r2> (average value of r2) Å2
<r2> 36.960
(<r2>)1/2 6.079