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All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: B2PLYP=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-430.626081
Energy at 298.15K 
HF Energy-430.112042
Nuclear repulsion energy342.201893
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 B2PLYP=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/aug-cc-pVTZ
ABC
0.19000 0.04770 0.03813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.362
C2 0.000 0.000 -1.362
C3 0.000 1.211 0.695
C4 0.000 -1.211 0.695
C5 0.000 -1.211 -0.695
C6 0.000 1.211 -0.695
F7 0.000 0.000 2.712
F8 0.000 0.000 -2.712
H9 0.000 2.132 1.256
H10 0.000 -2.132 1.256
H11 0.000 -2.132 -1.256
H12 0.000 2.132 -1.256

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72361.38261.38262.38672.38671.34994.07352.13462.13463.37593.3759
C22.72362.38672.38671.38261.38264.07351.34993.37593.37592.13462.1346
C31.38262.38672.42212.79251.38972.35253.61541.07823.38973.87042.1570
C41.38262.38672.42211.38972.79252.35253.61543.38971.07822.15703.8704
C52.38671.38262.79251.38972.42213.61542.35253.87042.15701.07823.3897
C62.38671.38261.38972.79252.42213.61542.35252.15703.87043.38971.0782
F71.34994.07352.35252.35253.61543.61545.42342.58172.58174.50394.5039
F84.07351.34993.61543.61542.35252.35255.42344.50394.50392.58172.5817
H92.13463.37591.07823.38973.87042.15702.58174.50394.26384.94852.5114
H102.13463.37593.38971.07822.15703.87042.58174.50394.26382.51144.9485
H113.37592.13463.87042.15701.07823.38974.50392.58174.94852.51144.2638
H123.37592.13462.15703.87043.38971.07824.50392.58172.51144.94854.2638

picture of 1,4-difluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 118.844 C1 C3 H9 119.812
C1 C4 C5 118.844 C1 C4 H10 119.812
C2 C5 C4 118.844 C2 C5 H11 119.812
C2 C6 C3 118.844 C2 C6 H12 119.812
C3 C1 C4 122.313 C3 C1 F7 118.844
C3 C6 H12 121.344 C4 C1 F7 118.844
C4 C5 H11 121.344 C5 C2 C6 122.313
C5 C2 F8 118.844 C5 C4 H10 121.344
C6 C2 F8 118.844 C6 C3 H9 121.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability