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

using model chemistry: wB97X-D/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 wB97X-D/aug-cc-pVDZ
 hartrees
Energy at 0K-153.758451
Energy at 298.15K 
HF Energy-153.758451
Nuclear repulsion energy75.258189
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 wB97X-D/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 3122 2989 17.14 238.59 0.06 0.12
2 A1 1542 1476 2.92 3.31 0.14 0.24
3 A1 1322 1266 16.43 30.85 0.12 0.21
4 A1 1160 1111 0.01 2.76 0.25 0.40
5 A1 914 875 75.59 8.52 0.71 0.83
6 A2 3208 3071 0.00 106.51 0.75 0.86
7 A2 1165 1115 0.00 0.76 0.75 0.86
8 A2 1046 1001 0.00 0.05 0.75 0.86
9 B1 3222 3085 40.57 20.40 0.75 0.86
10 B1 1168 1119 4.38 3.16 0.75 0.86
11 B1 819 784 0.23 2.70 0.75 0.86
12 B2 3114 2981 37.59 9.48 0.75 0.86
13 B2 1494 1430 0.47 3.02 0.75 0.86
14 B2 1160 1110 0.16 0.21 0.75 0.86
15 B2 888 850 10.10 4.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12671.3 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 12130.3 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 wB97X-D/aug-cc-pVDZ
ABC
0.85977 0.73691 0.47392

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.851
C2 0.000 0.733 -0.371
C3 0.000 -0.733 -0.371
H4 0.926 1.271 -0.588
H5 -0.926 1.271 -0.588
H6 -0.926 -1.271 -0.588
H7 0.926 -1.271 -0.588

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42501.42502.13122.13122.13122.1312
C21.42501.46671.09241.09242.21852.2185
C31.42501.46672.21852.21851.09241.0924
H42.13121.09242.21851.85183.14502.5420
H52.13121.09242.21851.85182.54203.1450
H62.13122.21851.09243.14502.54201.8518
H72.13122.21851.09242.54203.14501.8518

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 59.028 O1 C2 H4 115.042
O1 C2 H5 115.042 O1 C3 C2 59.028
O1 C3 H6 115.042 O1 C3 H7 115.042
C2 O1 C3 61.944 C2 C3 H6 119.485
C2 C3 H7 119.485 C3 C2 H4 119.485
C3 C2 H5 119.485 H4 C2 H5 115.905
H6 C3 H7 115.905
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.572      
2 C 0.993      
3 C 0.993      
4 H -0.354      
5 H -0.354      
6 H -0.354      
7 H -0.354      


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 -1.914 1.914
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.343 0.000 0.000
y 0.000 -16.405 0.000
z 0.000 0.000 -20.968
Traceless
 xyz
x 1.343 0.000 0.000
y 0.000 2.751 0.000
z 0.000 0.000 -4.094
Polar
3z2-r2-8.188
x2-y2-0.938
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.908 0.000 0.000
y 0.000 4.827 0.000
z 0.000 0.000 3.928


<r2> (average value of r2) Å2
<r2> 36.561
(<r2>)1/2 6.047