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

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-277.952020
Energy at 298.15K 
HF Energy-277.035194
Nuclear repulsion energy126.790507
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 MP3=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/cc-pVTZ
ABC
1.08777 0.13138 0.12259

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.420 0.625 0.000
C2 -0.420 -0.625 0.000
F3 -0.420 1.709 0.000
F4 0.420 -1.709 0.000
H5 1.045 0.663 0.884
H6 1.045 0.663 -0.884
H7 -1.045 -0.663 0.884
H8 -1.045 -0.663 -0.884

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6 H7 H8
C11.50701.37172.33441.08351.08352.14222.1422
C21.50702.33441.37172.14222.14221.08351.0835
F31.37172.33443.52012.00632.00632.60722.6072
F42.33441.37173.52012.60722.60722.00632.0063
H51.08352.14222.00632.60721.76882.47523.0422
H61.08352.14222.00632.60721.76883.04222.4752
H72.14221.08352.60722.00632.47523.04221.7688
H82.14221.08352.60722.00633.04222.47521.7688

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 108.284 C1 C2 H7 110.507
C1 C2 H8 110.507 C2 C1 F3 108.284
C2 C1 H5 110.507 C2 C1 H6 110.507
F3 C1 H5 109.043 F3 C1 H6 109.043
F4 C2 H7 109.043 F4 C2 H8 109.043
H5 C1 H6 109.419 H7 C2 H8 109.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability