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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: CCSD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-194.895795
Energy at 298.15K 
HF Energy-193.968790
Nuclear repulsion energy179.242621
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)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVTZ
ABC
0.24037 0.24037 0.20814

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.942
C2 0.000 1.240 0.000
C3 1.074 -0.620 0.000
C4 -1.074 -0.620 0.000
C5 0.000 0.000 -0.942
H6 0.000 0.000 2.031
H7 0.000 0.000 -2.031
H8 0.905 1.850 0.000
H9 -0.905 1.850 0.000
H10 1.149 -1.709 0.000
H11 2.055 -0.141 0.000
H12 -2.055 -0.141 0.000
H13 -1.149 -1.709 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55741.55741.55741.88491.08902.97382.26492.26492.26492.26492.26492.2649
C21.55742.14762.14761.55742.37992.37991.09171.09173.16502.47552.47553.1650
C31.55742.14762.14761.55742.37992.37992.47553.16501.09171.09173.16502.4755
C41.55742.14762.14761.55742.37992.37993.16502.47552.47553.16501.09171.0917
C51.88491.55741.55741.55742.97381.08902.26492.26492.26492.26492.26492.2649
H61.08902.37992.37992.37992.97384.06282.89282.89282.89282.89282.89282.8928
H72.97382.37992.37992.37991.08904.06282.89282.89282.89282.89282.89282.8928
H82.26491.09172.47553.16502.26492.89282.89281.81093.56722.29853.56724.1094
H92.26491.09173.16502.47552.26492.89282.89281.81094.10943.56722.29853.5672
H102.26493.16501.09172.47552.26492.89282.89283.56724.10941.81093.56722.2986
H112.26492.47551.09173.16502.26492.89282.89282.29853.56721.81094.10943.5672
H122.26492.47553.16501.09172.26492.89282.89283.56722.29853.56724.10941.8109
H132.26493.16502.47551.09172.26492.89282.89284.10943.56722.29863.56721.8109

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.476 C1 C2 H8 116.410
C1 C2 H9 116.410 C1 C3 C5 74.476
C1 C3 H10 116.410 C1 C3 H11 116.410
C1 C4 C5 74.476 C1 C4 H12 116.410
C1 C4 H13 116.410 C2 C1 C3 87.176
C2 C1 C4 87.176 C2 C1 H6 127.238
C2 C5 C3 87.176 C2 C5 C4 87.176
C2 C5 H7 127.238 C3 C1 C4 87.176
C3 C1 H6 127.238 C3 C5 C4 87.176
C3 C5 H7 127.238 C4 C1 H6 127.238
C4 C5 H7 127.238 C5 C2 H8 116.410
C5 C2 H9 116.410 C5 C3 H10 116.410
C5 C3 H11 116.410 C5 C4 H12 116.410
C5 C4 H13 116.410 H8 C2 H9 112.070
H10 C3 H11 112.069 H12 C4 H13 112.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability