return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: CCSD=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-194.991439
Energy at 298.15K 
HF Energy-194.010941
Nuclear repulsion energy163.954102
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 CCSD=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVTZ
ABC
0.51102 0.10315 0.09917

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.393 0.289 0.000
C2 0.253 -1.030 0.000
C3 -0.387 -2.194 0.000
C4 0.253 1.423 0.748
C5 0.253 1.423 -0.748
H6 -1.472 0.272 0.000
H7 1.336 -1.024 0.000
H8 0.150 -3.130 0.000
H9 -1.466 -2.240 0.000
H10 -0.393 2.118 1.258
H11 1.182 1.211 1.253
H12 -0.393 2.118 -1.258
H13 1.182 1.211 -1.253

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.46852.48311.50461.50461.07892.17063.46102.74642.22042.21382.22042.2138
C21.46851.32852.56462.56462.16091.08302.10192.10183.45142.73053.45142.7305
C32.48311.32853.74893.74892.69422.08291.07811.08024.49253.95334.49253.9533
C41.50462.56463.74891.49592.20472.77814.61474.11441.07731.07812.21912.2158
C51.50462.56463.74891.49592.20472.77814.61474.11442.21912.21581.07731.0781
H61.07892.16092.69422.20472.20473.09223.76802.51112.48153.08142.48153.0814
H72.17061.08302.08292.77812.77813.09222.41703.05443.80032.56663.80032.5666
H83.46102.10191.07814.61474.61473.76802.41701.84475.42374.63435.42374.6343
H92.74642.10181.08024.11444.11442.51113.05441.84474.66104.52644.66104.5264
H102.22043.45144.49251.07732.21912.48153.80035.42374.66101.81722.51603.0992
H112.21382.73053.95331.07812.21583.08142.56664.63434.52641.81723.09922.5051
H122.22043.45144.49252.21911.07732.48153.80035.42374.66102.51603.09921.8172
H132.21382.73053.95332.21581.07813.08142.56664.63434.52643.09922.50511.8172

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.111 C1 C2 H7 115.757
C1 C4 C5 60.190 C1 C4 H10 117.681
C1 C4 H11 117.044 C1 C5 C4 60.190
C1 C5 H12 117.681 C1 C5 H13 117.044
C2 C1 C4 119.214 C2 C1 C5 119.214
C2 C1 H6 115.195 C2 C3 H8 121.367
C2 C3 H9 121.180 C3 C2 H7 119.132
C4 C1 H6 116.192 C4 C5 H12 118.257
C4 C5 H13 117.908 C5 C1 H6 116.192
C5 C4 H10 118.257 C5 C4 H11 117.908
H8 C3 H9 117.453 H10 C4 H11 114.936
H12 C5 H13 114.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability