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All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-193.412636
Energy at 298.15K 
HF Energy-192.725267
Nuclear repulsion energy160.354414
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.36104 0.21892 0.17500

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.265 1.050 0.676
C2 -0.265 1.050 -0.676
C3 -0.265 -0.466 0.764
C4 -0.265 -0.466 -0.764
C5 0.926 -0.997 0.000
H6 -0.184 1.805 1.447
H7 -0.184 1.805 -1.447
H8 -0.869 -1.057 1.436
H9 -0.869 -1.057 -1.436
H10 1.861 -0.444 0.000
H11 1.053 -2.076 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.35251.51892.09102.46381.08162.25472.32013.04442.68583.4595
C21.35252.09101.51892.46382.25471.08163.04442.32012.68583.4595
C31.51892.09101.52701.51152.37293.17011.08002.35662.25962.2163
C42.09101.51891.52701.51153.17012.37292.35661.08002.25962.2163
C52.46382.46381.51151.51153.34343.34342.30002.30001.08641.0859
H61.08162.25472.37293.17013.34342.89402.94254.11973.36674.3224
H72.25471.08163.17012.37293.34342.89404.11972.94253.36674.3224
H82.32013.04441.08002.35662.30002.94254.11972.87283.14542.6069
H93.04442.32012.35661.08002.30004.11972.94252.87283.14542.6069
H102.68582.68582.25962.25961.08643.36673.36673.14543.14541.8208
H113.45953.45952.21632.21631.08594.32244.32242.60692.60691.8208

picture of Bicyclo[2.1.0]pent-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 93.294 C1 C2 H7 135.448
C1 C3 C4 86.706 C1 C3 C5 108.778
C1 C3 H8 125.583 C2 C1 C3 93.294
C2 C1 H6 135.448 C2 C4 C3 86.706
C2 C4 C5 108.778 C2 C4 H9 125.583
C3 C1 H6 130.950 C3 C4 C5 59.660
C3 C4 H9 128.538 C3 C5 C4 60.679
C3 C5 H10 119.967 C3 C5 H11 116.175
C4 C2 H7 130.950 C4 C3 C5 59.660
C4 C3 H8 128.538 C4 C5 H10 119.967
C4 C5 H11 116.175 C5 C3 H8 124.275
C5 C4 H9 124.275 H10 C5 H11 113.898
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability