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

using model chemistry: QCISD(T)=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-194.731426
Energy at 298.15K 
HF Energy-193.920303
Nuclear repulsion energy179.302328
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/6-31+G**
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/6-31+G**
ABC
0.24058 0.24058 0.20823

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.942
C2 0.000 1.239 0.000
C3 1.073 -0.620 0.000
C4 -1.073 -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 0.904 1.853 0.000
H9 -0.904 1.853 0.000
H10 1.153 -1.709 0.000
H11 2.056 -0.144 0.000
H12 -2.056 -0.144 0.000
H13 -1.153 -1.709 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55621.55621.55621.88311.08982.97282.26602.26602.26602.26602.26602.2660
C21.55622.14602.14601.55622.37932.37931.09221.09223.16522.47792.47793.1652
C31.55622.14602.14601.55622.37932.37932.47793.16511.09221.09223.16512.4779
C41.55622.14602.14601.55622.37932.37933.16512.47792.47793.16511.09221.0922
C51.88311.55621.55621.55622.97281.08982.26602.26602.26602.26602.26602.2660
H61.08982.37932.37932.37932.97284.06262.89392.89392.89392.89392.89392.8939
H72.97282.37932.37932.37931.08984.06262.89392.89392.89392.89392.89392.8939
H82.26601.09222.47793.16512.26602.89392.89391.80723.57012.30513.57014.1123
H92.26601.09223.16512.47792.26602.89392.89391.80724.11233.57012.30513.5701
H102.26603.16521.09222.47792.26602.89392.89393.57014.11231.80723.57012.3051
H112.26602.47791.09223.16512.26602.89392.89392.30513.57011.80724.11233.5701
H122.26602.47793.16511.09222.26602.89392.89393.57012.30513.57014.11231.8072
H132.26603.16522.47791.09222.26602.89392.89394.11233.57012.30513.57011.8072

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 74.462 C1 C2 H8 116.568
C1 C2 H9 116.568 C1 C3 C5 74.462
C1 C3 H10 116.568 C1 C3 H11 116.568
C1 C4 C5 74.462 C1 C4 H12 116.568
C1 C4 H13 116.568 C2 C1 C3 87.186
C2 C1 C4 87.186 C2 C1 H6 127.231
C2 C5 C3 87.186 C2 C5 C4 87.186
C2 C5 H7 127.231 C3 C1 C4 87.186
C3 C1 H6 127.231 C3 C5 C4 87.186
C3 C5 H7 127.231 C4 C1 H6 127.231
C4 C5 H7 127.231 C5 C2 H8 116.568
C5 C2 H9 116.568 C5 C3 H10 116.568
C5 C3 H11 116.568 C5 C4 H12 116.568
C5 C4 H13 116.568 H8 C2 H9 111.648
H10 C3 H11 111.648 H12 C4 H13 111.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability