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

using model chemistry: MP4=FULL/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 MP4=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-278.031652
Energy at 298.15K 
HF Energy-277.039406
Nuclear repulsion energy125.707850
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 MP4=FULL/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/daug-cc-pVTZ
ABC
1.06876 0.12940 0.12073

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/daug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.623 0.000
C2 -0.426 -0.623 0.000
F3 -0.426 1.723 0.000
F4 0.426 -1.723 0.000
H5 1.049 0.669 0.893
H6 1.049 0.669 -0.893
H7 -1.049 -0.669 0.893
H8 -1.049 -0.669 -0.893

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6 H7 H8
C11.50941.39212.34581.08911.08912.15442.1544
C21.50942.34581.39212.15442.15441.08911.0891
F31.39212.34583.55012.02102.02102.62792.6279
F42.34581.39213.55012.62792.62792.02102.0210
H51.08912.15442.02102.62791.78512.48813.0622
H61.08912.15442.02102.62791.78513.06222.4881
H72.15441.08912.62792.02102.48813.06221.7851
H82.15441.08912.62792.02103.06222.48811.7851

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 107.822 C1 C2 H7 110.972
C1 C2 H8 110.972 C2 C1 F3 107.822
C2 C1 H5 110.972 C2 C1 H6 110.972
F3 C1 H5 108.457 F3 C1 H6 108.457
F4 C2 H7 108.457 F4 C2 H8 108.457
H5 C1 H6 110.065 H7 C2 H8 110.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability