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All results from a given calculation for C6H6 (1,2,4,5-Hexatetraene)

using model chemistry: CCSD(T)/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at CCSD(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.674380
Energy at 298.15K 
HF Energy-230.650187
Nuclear repulsion energy175.925213
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(T)/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-311+G(3df,2p)
ABC
1.05750 0.04525 0.04418

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.331 0.657 0.000
C2 0.331 -0.657 0.000
C3 0.331 1.798 0.000
C4 -0.331 -1.798 0.000
C5 0.997 2.930 0.000
C6 -0.997 -2.930 0.000
H7 -1.418 0.672 0.000
H8 1.418 -0.672 0.000
H9 1.280 3.413 0.929
H10 1.280 3.413 -0.929
H11 -1.280 -3.413 0.929
H12 -1.280 -3.413 -0.929

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47081.31972.45432.63283.64741.08692.19693.32573.32574.28104.2810
C21.47082.45431.31973.64742.63282.19691.08694.28104.28103.32573.3257
C31.31972.45433.65601.31314.91042.08032.69852.09142.09145.53315.5331
C42.45431.31973.65604.91041.31312.69852.08035.53315.53312.09142.0914
C52.63283.64741.31314.91046.18923.30603.62631.08531.08536.80306.8030
C63.64742.63284.91041.31316.18923.62633.30606.80306.80301.08531.0853
H71.08692.19692.08032.69853.30603.62633.13883.95703.95704.19214.1921
H82.19691.08692.69852.08033.62633.30603.13884.19214.19213.95703.9570
H93.32574.28102.09145.53311.08536.80303.95704.19211.85887.29087.5240
H103.32574.28102.09145.53311.08536.80303.95704.19211.85887.52407.2908
H114.28103.32575.53312.09146.80301.08534.19213.95707.29087.52401.8588
H124.28103.32575.53312.09146.80301.08534.19213.95707.52407.29081.8588

picture of 1,2,4,5-Hexatetraene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.073 C1 C2 H8 117.608
C1 C3 C5 179.679 C2 C1 C3 123.073
C2 C1 H7 117.608 C2 C4 C6 179.679
C3 C1 H7 119.319 C3 C5 H9 121.089
C3 C5 H10 121.089 C4 C2 H8 119.319
C4 C6 H11 121.089 C4 C6 H12 121.089
H9 C5 H10 117.822 H11 C6 H12 117.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability