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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: MP3/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 MP3/cc-pVTZ
 hartrees
Energy at 0K-156.881353
Energy at 298.15K 
HF Energy-156.151197
Nuclear repulsion energy124.594379
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 MP3/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP3/cc-pVTZ
ABC
0.52193 0.21332 0.18738

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.350 0.408 0.000
C2 -0.888 1.268 0.000
H3 1.286 0.947 0.000
C4 0.350 -0.893 0.755
C5 0.350 -0.893 -0.755
H6 1.253 -1.196 1.260
H7 1.253 -1.196 -1.260
H8 -0.565 -1.176 1.254
H9 -0.565 -1.176 -1.254
H10 -1.782 0.645 0.000
H11 -0.927 1.906 0.882
H12 -0.927 1.906 -0.882

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.50791.08031.50411.50412.23042.23042.21732.21732.14562.15772.1577
C21.50792.19792.60292.60293.49943.49942.76612.76611.09021.08951.0895
H31.08032.19792.19832.19832.48602.48603.08283.08283.08342.56852.5685
C41.50412.60292.19831.51001.07822.22881.07952.22532.73543.07973.4856
C51.50412.60292.19831.51002.22881.07822.22531.07952.73543.48563.0797
H62.23043.49942.48601.07822.22882.51971.81803.10223.76723.81074.3552
H72.23043.49942.48602.22881.07822.51973.10221.81803.76724.35523.8107
H82.21732.76613.08281.07952.22531.81803.10222.50772.52403.12573.7676
H92.21732.76613.08282.22531.07953.10221.81802.50772.52403.76763.1257
H102.14561.09023.08342.73542.73543.76723.76722.52402.52401.76111.7611
H112.15771.08952.56853.07973.48563.81074.35523.12573.76761.76111.7646
H122.15771.08952.56853.48563.07974.35523.81073.76763.12571.76111.7646

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.307 C1 C2 H11 111.322
C1 C2 H12 111.322 C1 C4 H5 59.868
C1 C4 H6 118.549 C1 C4 H8 117.292
C1 H5 C4 59.868 C1 H5 H7 118.549
C1 H5 H9 117.292 C2 C1 C3 115.249
C2 C1 C4 119.581 C2 C1 H5 119.581
C3 C1 C4 115.578 C3 C1 H5 115.578
C4 C1 H5 60.263 C4 H5 H7 117.917
C4 H5 H9 117.524 H5 C4 H6 117.917
H5 C4 H8 117.524 H6 C4 H8 114.829
H7 H5 H9 114.829 H10 C2 H11 107.795
H10 C2 H12 107.795 H11 C2 H12 108.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability