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

using model chemistry: TPSSh/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 TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-153.822244
Energy at 298.15K 
HF Energy-153.822244
Nuclear repulsion energy74.800810
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 TPSSh/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 3098 2997 18.99 257.62 0.07 0.12
2 A1 1533 1483 2.53 2.93 0.34 0.51
3 A1 1300 1257 13.78 30.96 0.11 0.20
4 A1 1141 1104 0.02 3.90 0.17 0.30
5 A1 898 868 69.65 8.48 0.74 0.85
6 A2 3180 3076 0.00 122.46 0.75 0.86
7 A2 1164 1126 0.00 0.85 0.75 0.86
8 A2 1032 998 0.00 0.02 0.75 0.86
9 B1 3196 3091 50.49 25.05 0.75 0.86
10 B1 1150 1112 3.36 3.64 0.75 0.86
11 B1 805 779 0.09 3.39 0.75 0.86
12 B2 3091 2990 43.06 11.37 0.75 0.86
13 B2 1497 1448 0.00 3.43 0.75 0.86
14 B2 1146 1108 0.07 0.42 0.75 0.86
15 B2 841 813 10.41 3.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12534.6 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 12124.7 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 TPSSh/aug-cc-pVDZ
ABC
0.84207 0.73406 0.46741

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.861
C2 0.000 0.735 -0.378
C3 0.000 -0.735 -0.378
H4 0.926 1.274 -0.590
H5 -0.926 1.274 -0.590
H6 -0.926 -1.274 -0.590
H7 0.926 -1.274 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44031.44032.14162.14162.14162.1416
C21.44031.46981.09271.09272.22242.2224
C31.44031.46982.22242.22241.09271.0927
H42.14161.09272.22241.85273.15052.5482
H52.14161.09272.22241.85272.54823.1505
H62.14162.22241.09273.15052.54821.8527
H72.14162.22241.09272.54823.15051.8527

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 59.320 O1 C2 H4 114.760
O1 C2 H5 114.760 O1 C3 C2 59.320
O1 C3 H6 114.760 O1 C3 H7 114.760
C2 O1 C3 61.360 C2 C3 H6 119.571
C2 C3 H7 119.571 C3 C2 H4 119.571
C3 C2 H5 119.571 H4 C2 H5 115.943
H6 C3 H7 115.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.583      
2 C 0.998      
3 C 0.998      
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 -1.882 1.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.990 0.000 0.000
y 0.000 4.914 0.000
z 0.000 0.000 4.032


<r2> (average value of r2) Å2
<r2> 36.886
(<r2>)1/2 6.073