return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: MP4/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-1195.870468
Energy at 298.15K-1195.873893
HF Energy-1194.804987
Nuclear repulsion energy373.625346
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 MP4/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP4/aug-cc-pVDZ
ABC
0.09606 0.05944 0.03823

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.228 0.732 0.396
C2 0.228 -0.732 0.396
H3 -1.324 0.825 0.350
H4 1.324 -0.825 0.350
F5 0.228 1.315 1.570
F6 -0.228 -1.315 1.570
Cl7 0.485 1.606 -0.992
Cl8 -0.485 -1.606 -0.992

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53381.10122.19921.38792.36001.78792.7313
C21.53382.19921.10122.36001.38792.73131.7879
H31.10122.19923.12052.03392.69642.38392.9012
H42.19921.10123.12052.69642.03392.90122.3839
F51.38792.36002.03392.69642.66842.59123.9501
F62.36001.38792.69642.03392.66843.95012.5912
Cl71.78792.73132.38392.90122.59123.95013.3560
Cl82.73131.78792.90122.38393.95012.59123.3560

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 112.107 C1 C2 F6 107.647
C1 C2 Cl8 110.389 C2 C1 H3 112.107
C2 C1 F5 107.647 C2 C1 Cl7 110.389
H3 C1 F5 109.050 H3 C1 Cl7 108.876
H4 C2 F6 109.050 H4 C2 Cl8 108.876
F5 C1 Cl7 108.703 F6 C2 Cl8 108.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability