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All results from a given calculation for C5H8 (Bicyclo[2.1.0]pentane)

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-194.647145
Energy at 298.15K 
HF Energy-193.942213
Nuclear repulsion energy176.357190
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
0.30577 0.20516 0.16054

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 -0.247 -0.538 0.765
C2 -0.247 -0.538 -0.765
C3 -0.247 0.989 0.780
C4 -0.247 0.989 -0.780
C5 0.945 -1.036 0.000
H6 -0.791 -1.182 1.442
H7 -0.791 -1.182 -1.442
H8 0.607 1.457 1.277
H9 0.607 1.457 -1.277
H10 -1.165 1.412 1.186
H11 -1.165 1.412 -1.186
H12 1.865 -0.459 0.000
H13 1.083 -2.109 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53081.52772.17311.50081.08152.36342.22992.98002.19612.90762.24692.1959
C21.53082.17311.52771.50082.36341.08152.98002.22992.90762.19612.24692.1959
C31.52772.17311.56042.47562.33453.15461.09242.27541.08932.21102.67623.4609
C42.17311.52771.56042.47563.15462.33452.27541.09242.21101.08932.67623.4609
C51.50081.50082.47562.47562.26202.26202.82142.82143.44203.44201.08571.0823
H61.08152.36342.33453.15462.26202.88492.99154.03912.63293.71163.10772.5408
H72.36341.08153.15462.33452.26202.88494.03912.99153.71162.63293.10772.5408
H82.22992.98001.09242.27542.82142.99154.03912.55321.77433.03402.62383.8181
H92.98002.22992.27541.09242.82144.03912.99152.55323.03401.77432.62383.8181
H102.19612.90761.08932.21103.44202.63293.71161.77433.03402.37233.75274.3425
H112.90762.19612.21101.08933.44203.71162.63293.03401.77432.37233.75274.3425
H122.24692.24692.67622.67621.08573.10773.10772.62382.62383.75273.75271.8258
H132.19592.19593.46093.46091.08232.54082.54083.81813.81814.34254.34251.8258

picture of Bicyclo[2.1.0]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.557 C1 C2 C5 59.337
C1 C2 H7 128.759 C1 C3 C4 89.443
C1 C3 H8 115.658 C1 C3 H10 113.039
C1 C5 C2 61.326 C1 C5 H12 119.759
C1 C5 H13 115.493 C2 C1 C3 90.557
C2 C1 C5 59.337 C2 C1 H6 128.759
C2 C4 C3 89.443 C2 C4 H9 115.658
C2 C4 H11 113.039 C2 C5 H12 119.759
C2 C5 H13 115.493 C3 C1 C5 109.654
C3 C1 H6 126.089 C3 C4 H9 117.026
C3 C4 H11 111.880 C4 C2 C5 109.654
C4 C2 H7 126.089 C4 C3 H8 117.026
C4 C3 H10 111.880 C5 C1 H6 121.466
C5 C2 H7 121.466 H8 C3 H10 108.834
H9 C4 H11 108.834 H12 C5 H13 114.735
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability