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 C5H8O (Methyl cyclopropyl ketone)

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-270.023956
Energy at 298.15K 
HF Energy-268.929683
Nuclear repulsion energy231.115879
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 CCD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/cc-pVTZ
ABC
0.24185 0.08810 0.07707

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.476 -0.557 0.000
C2 -0.283 -0.756 0.000
C3 0.299 -2.149 0.000
C4 0.695 0.369 0.000
C5 0.299 1.627 0.745
C6 0.299 1.627 -0.745
H7 -0.498 -2.887 0.000
H8 0.932 -2.284 -0.878
H9 0.932 -2.284 0.878
H10 1.741 0.100 0.000
H11 -0.660 1.593 1.239
H12 1.083 2.159 1.261
H13 -0.660 1.593 -1.239
H14 1.083 2.159 -1.261

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20892.38422.36012.91052.91052.52713.09063.09063.28272.61233.93842.61233.9384
C21.20891.50931.49152.56372.56372.14102.14052.14052.19782.68313.45782.68313.4578
C32.38421.50932.54893.84823.84821.08581.09111.09112.67134.05694.55654.05694.5565
C42.36011.49152.54891.51421.51423.46752.80462.80461.07942.20692.22352.20692.2235
C52.91052.56373.84821.51421.48924.64324.28093.96372.22781.07921.07912.20352.2182
C62.91052.56373.84821.51421.48924.64323.96374.28092.22782.20352.21821.07921.0791
H72.52712.14101.08583.46754.64324.64321.78291.78293.73244.65125.43574.65125.4357
H83.09062.14051.09112.80464.28093.96371.78291.75662.66614.69584.93334.20684.4618
H93.09062.14051.09112.80463.96374.28091.78291.75662.66614.20684.46184.69584.9333
H103.28272.19782.67131.07942.22782.22783.73242.66612.66613.08662.50233.08662.5023
H112.61232.68314.05692.20691.07922.20354.65124.69584.20683.08661.83222.47833.0995
H123.93843.45784.55652.22351.07912.21825.43574.93334.46182.50231.83223.09952.5220
H132.61232.68314.05692.20692.20351.07924.65124.20684.69583.08662.47833.09951.8322
H143.93843.45784.55652.22352.21821.07915.43574.46184.93332.50233.09952.52201.8322

picture of Methyl cyclopropyl ketone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 122.209 O1 C2 C4 121.495
C2 C3 H7 110.115 C2 C3 H8 109.759
C2 C3 H9 109.759 C2 C4 C5 117.065
C2 C4 C6 117.065 C2 C4 H10 116.576
C3 C2 C4 116.296 C4 C5 C6 60.546
C4 C5 H11 115.608 C4 C5 H12 117.055
C4 C6 C5 60.546 C4 C6 H13 115.608
C4 C6 H14 117.055 C5 C4 C6 58.909
C5 C4 H10 117.413 C5 C6 H13 117.275
C5 C6 H14 118.591 C6 C4 H10 117.413
C6 C5 H11 117.275 C6 C5 H12 118.591
H7 C3 H8 109.974 H7 C3 H9 109.974
H8 C3 H9 107.213 H11 C5 H12 116.179
H13 C6 H14 116.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability