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

using model chemistry: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-429.685368
Energy at 298.15K 
HF Energy-428.451165
Nuclear repulsion energy338.382774
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/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVDZ
ABC
0.18516 0.04674 0.03732

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.374
C2 0.000 0.000 -1.374
C3 0.000 1.227 0.704
C4 0.000 -1.227 0.704
C5 0.000 -1.227 -0.704
C6 0.000 1.227 -0.704
F7 0.000 0.000 2.739
F8 0.000 0.000 -2.739
H9 0.000 2.160 1.272
H10 0.000 -2.160 1.272
H11 0.000 -2.160 -1.272
H12 0.000 2.160 -1.272

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.74811.39801.39802.41272.41271.36494.11302.16242.16243.41533.4153
C22.74812.41272.41271.39801.39804.11301.36493.41533.41532.16242.1624
C31.39802.41272.45352.82831.40712.37653.65461.09243.43403.92052.1844
C41.39802.41272.45351.40712.82832.37653.65463.43401.09242.18443.9205
C52.41271.39802.82831.40712.45353.65462.37653.92052.18441.09243.4340
C62.41271.39801.40712.82832.45353.65462.37652.18443.92053.43401.0924
F71.36494.11302.37652.37653.65463.65465.47792.61132.61134.55514.5551
F84.11301.36493.65463.65462.37652.37655.47794.55514.55512.61132.6113
H92.16243.41531.09243.43403.92052.18442.61134.55514.31995.01282.5431
H102.16243.41533.43401.09242.18443.92052.61134.55514.31992.54315.0128
H113.41532.16243.92052.18441.09243.43404.55512.61135.01282.54314.3199
H123.41532.16242.18443.92053.43401.09244.55512.61132.54315.01284.3199

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 118.660 C1 C3 H9 120.013
C1 C4 C5 118.660 C1 C4 H10 120.013
C2 C5 C4 118.660 C2 C5 H11 120.013
C2 C6 C3 118.660 C2 C6 H12 120.013
C3 C1 C4 122.680 C3 C1 F7 118.660
C3 C6 H12 121.327 C4 C1 F7 118.660
C4 C5 H11 121.327 C5 C2 C6 122.680
C5 C2 F8 118.660 C5 C4 H10 121.327
C6 C2 F8 118.660 C6 C3 H9 121.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability