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

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 D3H 1A1'
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-194.896323
Energy at 298.15K 
HF Energy-193.968767
Nuclear repulsion energy179.223886
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
0.24032 0.24032 0.20809

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.943
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 -0.943
H6 0.000 0.000 2.032
H7 0.000 0.000 -2.032
H8 0.906 1.850 0.000
H9 -0.906 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
C11.55761.55761.55761.88511.08902.97412.26512.26512.26512.26512.26512.2651
C21.55762.14782.14781.55762.38012.38011.09181.09183.16532.47572.47573.1653
C31.55762.14782.14781.55762.38012.38012.47573.16531.09181.09183.16532.4757
C41.55762.14782.14781.55762.38012.38013.16532.47572.47573.16531.09181.0918
C51.88511.55761.55761.55762.97411.08902.26512.26512.26512.26512.26512.2651
H61.08902.38012.38012.38012.97414.06322.89302.89302.89302.89302.89302.8930
H72.97412.38012.38012.38011.08904.06322.89302.89302.89302.89302.89302.8930
H82.26511.09182.47573.16532.26512.89302.89301.81103.56752.29873.56754.1098
H92.26511.09183.16532.47572.26512.89302.89301.81104.10983.56752.29873.5675
H102.26513.16531.09182.47572.26512.89302.89303.56754.10981.81103.56752.2987
H112.26512.47571.09183.16532.26512.89302.89302.29873.56751.81104.10983.5675
H122.26512.47573.16531.09182.26512.89302.89303.56752.29873.56754.10981.8110
H132.26513.16532.47571.09182.26512.89302.89304.10983.56752.29873.56751.8110

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 74.477 C1 C2 H8 116.409
C1 C2 H9 116.409 C1 C3 C5 74.477
C1 C3 H10 116.409 C1 C3 H11 116.409
C1 C4 C5 74.477 C1 C4 H12 116.409
C1 C4 H13 116.409 C2 C1 C3 87.175
C2 C1 C4 87.175 C2 C1 H6 127.238
C2 C5 C3 87.175 C2 C5 C4 87.175
C2 C5 H7 127.238 C3 C1 C4 87.175
C3 C1 H6 127.238 C3 C5 C4 87.175
C3 C5 H7 127.238 C4 C1 H6 127.238
C4 C5 H7 127.238 C5 C2 H8 116.409
C5 C2 H9 116.409 C5 C3 H10 116.409
C5 C3 H11 116.409 C5 C4 H12 116.409
C5 C4 H13 116.409 H8 C2 H9 112.073
H10 C3 H11 112.073 H12 C4 H13 112.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability