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

using model chemistry: CCSD/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-153.532466
Energy at 298.15K 
HF Energy-152.928991
Nuclear repulsion energy75.414281
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/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/daug-cc-pVTZ
ABC
0.85996 0.74258 0.47489

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.852
C2 0.000 0.732 -0.372
C3 0.000 -0.732 -0.372
H4 0.919 1.264 -0.587
H5 -0.919 1.264 -0.587
H6 -0.919 -1.264 -0.587
H7 0.919 -1.264 -0.587

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42631.42632.12402.12402.12402.1240
C21.42631.46401.08311.08312.20762.2076
C31.42631.46402.20762.20761.08311.0831
H42.12401.08312.20761.83763.12502.5276
H52.12401.08312.20761.83762.52763.1250
H62.12402.20761.08313.12502.52761.8376
H72.12402.20761.08312.52763.12501.8376

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 59.123 O1 C2 H4 114.958
O1 C2 H5 114.958 O1 C3 C2 59.123
O1 C3 H6 114.958 O1 C3 H7 114.958
C2 O1 C3 61.754 C2 C3 H6 119.408
C2 C3 H7 119.408 C3 C2 H4 119.408
C3 C2 H5 119.408 H4 C2 H5 116.063
H6 C3 H7 116.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability