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All results from a given calculation for C5H5 (cyclopentadienyl radical)

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2B1

Conformer 1 (D5H)

Jump to S1C2
Vibrational Frequencies calculated at CCD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-193.042422
Energy at 298.15K 
HF Energy-192.257339
Nuclear repulsion energy149.325601
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 CCD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.218
C2 0.000 1.118 0.394
C3 0.000 0.678 -1.003
C4 0.000 -0.678 -1.003
C5 0.000 -1.118 0.394
H6 0.000 0.000 2.293
H7 0.000 2.147 0.717
H8 0.000 1.331 -1.860
H9 0.000 -1.331 -1.860
H10 0.000 -2.147 0.717

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10
C11.38862.32222.32221.38861.07572.20433.35293.35292.2043
C21.38861.46492.27552.23592.20401.07852.26383.32823.2807
C32.32221.46491.35612.27553.36572.26241.07702.18403.3077
C42.32222.27551.35611.46493.36573.30772.18401.07702.2624
C51.38862.23592.27551.46492.20403.28073.32822.26381.0785
H61.07572.20403.36573.36572.20402.66304.36124.36122.6630
H72.20431.07852.26243.30773.28072.66302.70334.32874.2936
H83.35292.26381.07702.18403.32824.36122.70332.66204.3287
H93.35293.32822.18401.07702.26384.36124.32872.66202.7033
H102.20433.28073.30772.26241.07852.66304.29364.32872.7033

picture of cyclopentadienyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 108.904 C1 C2 H7 126.160
C1 C5 C4 108.904 C1 C5 H10 126.160
C2 C1 C5 107.238 C2 C1 H6 126.381
C2 C3 C4 107.477 C2 C3 H8 125.201
C3 C2 H7 124.936 C3 C4 C5 107.477
C3 C4 H9 127.323 C4 C3 H8 127.323
C4 C5 H10 124.936 C5 C1 H6 126.381
C5 C4 H9 125.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability