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

using model chemistry: CCSD=FULL/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=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-153.587269
Energy at 298.15K 
HF Energy-152.929523
Nuclear repulsion energy75.701893
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/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/daug-cc-pVTZ
ABC
0.86686 0.74794 0.47877

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.848
C2 0.000 0.729 -0.370
C3 0.000 -0.729 -0.370
H4 0.917 1.259 -0.585
H5 -0.917 1.259 -0.585
H6 -0.917 -1.259 -0.585
H7 0.917 -1.259 -0.585

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.42021.42022.11652.11652.11652.1165
C21.42021.45841.08021.08022.19982.1998
C31.42021.45842.19982.19981.08021.0802
H42.11651.08022.19981.83333.11462.5178
H52.11651.08022.19981.83332.51783.1146
H62.11652.19981.08023.11462.51781.8333
H72.11652.19981.08022.51783.11461.8333

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 59.105 O1 C2 H4 114.979
O1 C2 H5 114.979 O1 C3 C2 59.105
O1 C3 H6 114.979 O1 C3 H7 114.979
C2 O1 C3 61.791 C2 C3 H6 119.363
C2 C3 H7 119.363 C3 C2 H4 119.363
C3 C2 H5 119.363 H4 C2 H5 116.114
H6 C3 H7 116.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability