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 C6H6 (Dewar Benzene)

using model chemistry: MP2/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/daug-cc-pVTZ
 hartrees
Energy at 0K-231.617638
Energy at 298.15K 
HF Energy-230.642343
Nuclear repulsion energy209.055560
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 MP2/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP2/daug-cc-pVTZ
ABC
0.25975 0.15085 0.11725

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.788 0.527
C2 0.000 -0.788 0.527
H3 0.000 1.347 1.460
H4 0.000 -1.347 1.460
C5 -1.293 0.673 -0.266
C6 1.293 0.673 -0.266
C7 1.293 -0.673 -0.266
C8 -1.293 -0.673 -0.266
H9 -1.933 1.419 -0.718
H10 1.933 1.419 -0.718
H11 1.933 -1.419 -0.718
H12 -1.933 -1.419 -0.718

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12
C11.57661.08742.33041.52111.52112.10652.10652.38442.38443.18763.1876
C21.57662.33041.08742.10652.10651.52111.52113.18763.18762.38442.3844
H31.08742.33042.69482.25922.25922.95522.95522.91312.91314.01694.0169
H42.33041.08742.69482.95522.95522.25922.25924.01694.01692.91312.9131
C51.52112.10652.25922.95522.58612.91581.34691.08193.34173.87172.2347
C61.52112.10652.25922.95522.58611.34692.91583.34171.08192.23473.8717
C72.10651.52112.95522.25922.91581.34692.58613.87172.23471.08193.3417
C82.10651.52112.95522.25921.34692.91582.58612.23473.87173.34171.0819
H92.38443.18762.91314.01691.08193.34173.87172.23473.86554.79582.8386
H102.38443.18762.91314.01693.34171.08192.23473.87173.86552.83864.7958
H113.18762.38444.01692.91313.87172.23471.08193.34174.79582.83863.8655
H123.18762.38444.01692.91312.23473.87173.34171.08192.83864.79583.8655

picture of Dewar Benzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 120.942 C1 C2 H7 85.670
C1 C2 H8 85.670 C1 C5 H8 94.330
C1 C5 H9 131.969 C1 C6 H7 94.330
C1 C6 H10 131.969 C2 C1 C3 120.942
C2 C1 C5 85.670 C2 C1 C6 85.670
C2 H7 C6 94.330 C2 H7 H11 131.969
C2 H8 C5 94.330 C2 H8 H12 131.969
C3 C1 C5 119.072 C3 C1 C6 119.072
C4 C2 H7 119.072 C4 C2 H8 119.072
C5 C1 C6 116.433 C5 H8 H12 133.581
C6 H7 H11 133.581 H7 C6 H10 133.581
H8 C5 H9 133.581
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability