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All results from a given calculation for C6H6O (2,5-Cyclohexadienone)

using model chemistry: QCISD(T)/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 QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-306.911282
Energy at 298.15K 
HF Energy-305.645138
Nuclear repulsion energy268.358995
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 QCISD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/cc-pVTZ
ABC
0.17434 0.08867 0.05941

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.115
C2 0.000 0.000 -1.828
C3 0.000 1.258 0.333
C4 0.000 -1.258 0.333
C5 0.000 1.257 -1.012
C6 0.000 -1.257 -1.012
O7 0.000 0.000 2.341
H8 0.000 2.178 0.904
H9 0.000 -2.178 0.904
H10 0.000 2.197 -1.555
H11 0.000 -2.197 -1.555
H12 0.870 0.000 -2.498
H13 -0.870 0.000 -2.498

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94311.48121.48122.47072.47071.22592.18792.18793.45753.45753.71623.7162
C22.94312.50022.50021.49851.49854.16893.49413.49412.21382.21381.09771.0977
C31.48122.50022.51561.34482.85172.36961.08313.48282.10823.93673.21733.2173
C41.48122.50022.51562.85171.34482.36963.48281.08313.93672.10823.21733.2173
C52.47071.49851.34482.85172.51373.58082.12633.93321.08543.49612.13162.1316
C62.47071.49852.85171.34482.51373.58083.93322.12633.49611.08542.13162.1316
O71.22594.16892.36962.36963.58083.58082.60882.60884.47254.47254.91644.9164
H82.18793.49411.08313.48282.12633.93322.60884.35552.45945.01854.13224.1322
H92.18793.49413.48281.08313.93322.12632.60884.35555.01852.45944.13224.1322
H103.45752.21382.10823.93671.08543.49614.47252.45945.01854.39382.54402.5440
H113.45752.21383.93672.10823.49611.08544.47255.01852.45944.39382.54402.5440
H123.71621.09773.21733.21732.13162.13164.91644.13224.13222.54402.54401.7390
H133.71621.09773.21733.21732.13162.13164.91644.13224.13222.54402.54401.7390

picture of 2,5-Cyclohexadienone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C5 121.840 C1 C3 H8 116.259
C1 C4 C6 121.840 C1 C4 H9 116.259
C2 C5 C3 123.031 C2 C5 H10 117.008
C2 C6 C4 123.031 C2 C6 H11 117.008
C3 C1 C4 116.241 C3 C1 O7 121.880
C3 C5 H10 119.961 C4 C1 O7 121.880
C4 C6 H11 119.961 C5 C2 C6 114.018
C5 C2 H12 109.410 C5 C2 H13 109.410
C5 C3 H8 121.901 C6 C2 H12 109.410
C6 C2 H13 109.410 C6 C4 H9 121.901
H12 C2 H13 104.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability