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

using model chemistry: QCISD(T)=FULL/Def2TZVPP

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)=FULL/Def2TZVPP
 hartrees
Energy at 0K-195.000806
Energy at 298.15K 
HF Energy-193.974188
Nuclear repulsion energy179.614025
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)=FULL/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/Def2TZVPP
ABC
0.24140 0.24140 0.20891

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.940
C2 0.000 1.238 0.000
C3 1.072 -0.619 0.000
C4 -1.072 -0.619 0.000
C5 0.000 0.000 -0.940
H6 0.000 0.000 2.026
H7 0.000 0.000 -2.026
H8 0.904 1.845 0.000
H9 -0.904 1.845 0.000
H10 1.146 -1.706 0.000
H11 2.050 -0.140 0.000
H12 -2.050 -0.140 0.000
H13 -1.146 -1.706 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55431.55431.55431.88011.08632.96642.25982.25982.25982.25982.25982.2598
C21.55432.14392.14391.55432.37452.37451.08941.08943.15882.47002.47003.1588
C31.55432.14392.14391.55432.37452.37452.47003.15881.08941.08943.15882.4700
C41.55432.14392.14391.55432.37452.37453.15882.47002.47003.15881.08941.0894
C51.88011.55431.55431.55432.96641.08632.25982.25982.25982.25982.25982.2598
H61.08632.37452.37452.37452.96644.05282.88612.88612.88612.88612.88612.8861
H72.96642.37452.37452.37451.08634.05282.88612.88612.88612.88612.88612.8861
H82.25981.08942.47003.15882.25982.88612.88611.80843.55942.29213.55944.1006
H92.25981.08943.15882.47002.25982.88612.88611.80844.10063.55942.29213.5594
H102.25983.15881.08942.47002.25982.88612.88613.55944.10061.80843.55942.2921
H112.25982.47001.08943.15882.25982.88612.88612.29213.55941.80844.10063.5594
H122.25982.47003.15881.08942.25982.88612.88613.55942.29213.55944.10061.8084
H132.25983.15882.47001.08942.25982.88612.88614.10063.55942.29213.55941.8084

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 74.431 C1 C2 H8 116.371
C1 C2 H9 116.371 C1 C3 C5 74.431
C1 C3 H10 116.371 C1 C3 H11 116.371
C1 C4 C5 74.431 C1 C4 H12 116.371
C1 C4 H13 116.371 C2 C1 C3 87.208
C2 C1 C4 87.208 C2 C1 H6 127.216
C2 C5 C3 87.208 C2 C5 C4 87.208
C2 C5 H7 127.216 C3 C1 C4 87.208
C3 C1 H6 127.216 C3 C5 C4 87.208
C3 C5 H7 127.216 C4 C1 H6 127.216
C4 C5 H7 127.216 C5 C2 H8 116.371
C5 C2 H9 116.371 C5 C3 H10 116.371
C5 C3 H11 116.371 C5 C4 H12 116.371
C5 C4 H13 116.371 H8 C2 H9 112.198
H10 C3 H11 112.198 H12 C4 H13 112.198
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability