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

using model chemistry: B97D3/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 B97D3/cc-pVDZ
 hartrees
Energy at 0K-153.702935
Energy at 298.15K 
HF Energy-153.702935
Nuclear repulsion energy74.697845
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 B97D3/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 3019 2993 15.08 247.24 0.09 0.16
2 A1 1493 1481 4.77 3.08 0.74 0.85
3 A1 1277 1266 11.15 25.49 0.19 0.32
4 A1 1111 1102 0.56 1.56 0.56 0.72
5 A1 885 877 56.03 11.06 0.73 0.85
6 A2 3094 3068 0.00 140.15 0.75 0.86
7 A2 1138 1128 0.00 4.37 0.75 0.86
8 A2 1005 996 0.00 0.09 0.75 0.86
9 B1 3111 3084 79.49 22.00 0.75 0.86
10 B1 1131 1121 2.52 13.97 0.75 0.86
11 B1 796 790 0.06 8.89 0.75 0.86
12 B2 3010 2984 51.75 12.16 0.75 0.86
13 B2 1451 1438 0.87 7.56 0.75 0.86
14 B2 1099 1090 0.81 2.89 0.75 0.86
15 B2 827 820 13.81 3.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12222.7 cm-1
Scaled (by 0.9915) Zero Point Vibrational Energy (zpe) 12118.8 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 B97D3/cc-pVDZ
ABC
0.84326 0.72927 0.46669

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.860
C2 0.000 0.737 -0.373
C3 0.000 -0.737 -0.373
H4 0.931 1.280 -0.602
H5 -0.931 1.280 -0.602
H6 -0.931 -1.280 -0.602
H7 0.931 -1.280 -0.602

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43611.43612.15462.15462.15462.1546
C21.43611.47331.10181.10182.23252.2325
C31.43611.47332.23252.23251.10181.1018
H42.15461.10182.23251.86153.16452.5591
H52.15461.10182.23251.86152.55913.1645
H62.15462.23251.10183.16452.55911.8615
H72.15462.23251.10182.55913.16451.8615

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 59.139 O1 C2 H4 115.578
O1 C2 H5 115.578 O1 C3 C2 59.139
O1 C3 H6 115.578 O1 C3 H7 115.578
C2 O1 C3 61.721 C2 C3 H6 119.524
C2 C3 H7 119.524 C3 C2 H4 119.524
C3 C2 H5 119.524 H4 C2 H5 115.303
H6 C3 H7 115.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.278      
2 C 0.086      
3 C 0.086      
4 H 0.026      
5 H 0.026      
6 H 0.026      
7 H 0.026      


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 -1.730 1.730
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.288 0.000 0.000
y 0.000 -16.612 0.000
z 0.000 0.000 -20.109
Traceless
 xyz
x 1.073 0.000 0.000
y 0.000 2.086 0.000
z 0.000 0.000 -3.159
Polar
3z2-r2-6.317
x2-y2-0.675
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.479 0.000 0.000
y 0.000 4.438 0.000
z 0.000 0.000 2.886


<r2> (average value of r2) Å2
<r2> 36.806
(<r2>)1/2 6.067