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

using model chemistry: CCSD=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-153.653525
Energy at 298.15K 
HF Energy-152.938124
Nuclear repulsion energy75.841970
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 CCSD=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/cc-pVQZ
ABC
0.87104 0.75000 0.48052

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.846
C2 0.000 0.728 -0.369
C3 0.000 -0.728 -0.369
H4 0.915 1.258 -0.586
H5 -0.915 1.258 -0.586
H6 -0.915 -1.258 -0.586
H7 0.915 -1.258 -0.586

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.41651.41652.11422.11422.11422.1142
C21.41651.45631.07921.07922.19732.1973
C31.41651.45632.19732.19731.07921.0792
H42.11421.07922.19731.82973.11082.5157
H52.11421.07922.19731.82972.51573.1108
H62.11422.19731.07923.11082.51571.8297
H72.11422.19731.07922.51573.11081.8297

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 59.067 O1 C2 H4 115.131
O1 C2 H5 115.131 O1 C3 C2 59.067
O1 C3 H6 115.131 O1 C3 H7 115.131
C2 O1 C3 61.865 C2 C3 H6 119.397
C2 C3 H7 119.397 C3 C2 H4 119.397
C3 C2 H5 119.397 H4 C2 H5 115.935
H6 C3 H7 115.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability