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

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 C2H anti 1Ag
Energy calculated at CCSD=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-277.995369
Energy at 298.15K 
HF Energy-277.040234
Nuclear repulsion energy126.331542
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
1.07790 0.13065 0.12190

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.423 0.624 0.000
C2 -0.423 -0.624 0.000
F3 -0.423 1.714 0.000
F4 0.423 -1.714 0.000
H5 1.047 0.668 0.890
H6 1.047 0.668 -0.890
H7 -1.047 -0.668 0.890
H8 -1.047 -0.668 -0.890

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6 H7 H8
C11.50761.38022.33781.08731.08732.14972.1497
C21.50762.33781.38022.14972.14971.08731.0873
F31.38022.33783.53102.01162.01162.61812.6181
F42.33781.38023.53102.61812.61812.01162.0116
H51.08732.14972.01162.61811.77932.48363.0551
H61.08732.14972.01162.61811.77933.05512.4836
H72.14971.08732.61812.01162.48363.05511.7793
H82.14971.08732.61812.01163.05512.48361.7793

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 108.025 C1 C2 H7 110.833
C1 C2 H8 110.833 C2 C1 F3 108.025
C2 C1 H5 110.833 C2 C1 H6 110.833
F3 C1 H5 108.635 F3 C1 H6 108.635
F4 C2 H7 108.635 F4 C2 H8 108.635
H5 C1 H6 109.807 H7 C2 H8 109.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability