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

using model chemistry: B2PLYP/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 B2PLYP/cc-pVDZ
 hartrees
Energy at 0K-153.634939
Energy at 298.15K 
HF Energy-153.482248
Nuclear repulsion energy74.959759
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 B2PLYP/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 3119 2987 10.60 227.14 0.09 0.17
2 A1 1540 1475 3.41 2.53 0.66 0.80
3 A1 1309 1254 10.77 26.21 0.18 0.31
4 A1 1149 1101 0.09 1.71 0.45 0.62
5 A1 898 860 58.70 10.96 0.74 0.85
6 A2 3202 3066 0.00 124.41 0.75 0.86
7 A2 1171 1122 0.00 3.92 0.75 0.86
8 A2 1037 993 0.00 0.07 0.75 0.86
9 B1 3217 3081 54.65 17.98 0.75 0.86
10 B1 1163 1114 3.51 12.74 0.75 0.86
11 B1 817 782 0.00 7.36 0.75 0.86
12 B2 3109 2978 36.64 10.05 0.75 0.86
13 B2 1494 1431 0.34 6.58 0.75 0.86
14 B2 1140 1092 1.06 2.32 0.75 0.86
15 B2 849 813 9.85 4.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12606.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12073.6 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 B2PLYP/cc-pVDZ
ABC
0.84986 0.73369 0.46972

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.857
C2 0.000 0.735 -0.372
C3 0.000 -0.735 -0.372
H4 0.927 1.274 -0.598
H5 -0.927 1.274 -0.598
H6 -0.927 -1.274 -0.598
H7 0.927 -1.274 -0.598

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.43191.43192.14392.14392.14392.1439
C21.43191.47041.09531.09532.22402.2240
C31.43191.47042.22402.22401.09531.0953
H42.14391.09532.22401.85343.15052.5477
H52.14391.09532.22401.85342.54773.1505
H62.14392.22401.09533.15052.54771.8534
H72.14392.22401.09532.54773.15051.8534

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 59.106 O1 C2 H4 115.418
O1 C2 H5 115.418 O1 C3 C2 59.106
O1 C3 H6 115.418 O1 C3 H7 115.418
C2 O1 C3 61.788 C2 C3 H6 119.457
C2 C3 H7 119.457 C3 C2 H4 119.457
C3 C2 H5 119.457 H4 C2 H5 115.564
H6 C3 H7 115.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.298      
2 C 0.074      
3 C 0.074      
4 H 0.038      
5 H 0.038      
6 H 0.038      
7 H 0.038      


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 -1.851 1.851
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.374 0.000 0.000
y 0.000 -16.667 0.000
z 0.000 0.000 -20.393
Traceless
 xyz
x 1.156 0.000 0.000
y 0.000 2.217 0.000
z 0.000 0.000 -3.372
Polar
3z2-r2-6.745
x2-y2-0.707
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.354 0.000 0.000
y 0.000 4.318 0.000
z 0.000 0.000 2.812


<r2> (average value of r2) Å2
<r2> 36.703
(<r2>)1/2 6.058