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

using model chemistry: CCSD(T)=FULL/aug-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 CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-278.021136
Energy at 298.15K 
HF Energy-277.039292
Nuclear repulsion energy125.960180
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(T)=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/aug-cc-pVTZ
ABC
1.07172 0.12994 0.12123

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.425 0.623 0.000
C2 -0.425 -0.623 0.000
F3 -0.425 1.719 0.000
F4 0.425 -1.719 0.000
H5 1.049 0.668 0.891
H6 1.049 0.668 -0.891
H7 -1.049 -0.668 0.891
H8 -1.049 -0.668 -0.891

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6 H7 H8
C11.50911.38692.34251.08891.08892.15282.1528
C21.50912.34251.38692.15282.15281.08891.0889
F31.38692.34253.54182.01822.01822.62302.6230
F42.34251.38693.54182.62302.62302.01822.0182
H51.08892.15282.01822.62301.78282.48683.0598
H61.08892.15282.01822.62301.78283.05982.4868
H72.15281.08892.62302.01822.48683.05981.7828
H82.15281.08892.62302.01823.05982.48681.7828

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 107.893 C1 C2 H7 110.878
C1 C2 H8 110.878 C2 C1 F3 107.893
C2 C1 H5 110.878 C2 C1 H6 110.878
F3 C1 H5 108.607 F3 C1 H6 108.607
F4 C2 H7 108.607 F4 C2 H8 108.607
H5 C1 H6 109.899 H7 C2 H8 109.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability