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All results from a given calculation for C2H4F2 (1,2-difluoroethane)

using model chemistry: CCD/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H anti 1Ag
Energy calculated at CCD/daug-cc-pVTZ
 hartrees
Energy at 0K-277.920011
Energy at 298.15K 
HF Energy-277.040060
Nuclear repulsion energy126.051743
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 CCD/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/daug-cc-pVTZ
ABC
1.07163 0.13007 0.12133

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.424 0.627 0.000
C2 -0.424 -0.627 0.000
F3 -0.424 1.717 0.000
F4 0.424 -1.717 0.000
H5 1.050 0.672 0.890
H6 1.050 0.672 -0.890
H7 -1.050 -0.672 0.890
H8 -1.050 -0.672 -0.890

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6 H7 H8
C11.51431.38172.34451.08941.08942.15772.1577
C21.51432.34451.38172.15772.15771.08941.0894
F31.38172.34453.53822.01492.01492.62592.6259
F42.34451.38173.53822.62592.62592.01492.0149
H51.08942.15772.01492.62591.78092.49403.0646
H61.08942.15772.01492.62591.78093.06462.4940
H72.15771.08942.62592.01492.49403.06461.7809
H82.15771.08942.62592.01493.06462.49401.7809

picture of 1,2-difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 108.022 C1 C2 H7 110.877
C1 C2 H8 110.877 C2 C1 F3 108.022
C2 C1 H5 110.877 C2 C1 H6 110.877
F3 C1 H5 108.673 F3 C1 H6 108.673
F4 C2 H7 108.673 F4 C2 H8 108.673
H5 C1 H6 109.650 H7 C2 H8 109.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability