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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-269.893167
Energy at 298.15K 
HF Energy-268.896220
Nuclear repulsion energy233.315249
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 QCISD(T)/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVDZ
ABC
0.21730 0.10980 0.07904

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.151
C2 0.000 0.000 0.927
C3 0.000 1.252 0.027
C4 0.000 -1.252 0.027
C5 0.321 0.708 -1.385
C6 -0.321 -0.708 -1.385
H7 -1.023 1.679 0.063
H8 1.023 -1.679 0.063
H9 0.698 2.013 0.414
H10 -0.698 -2.013 0.414
H11 -0.063 1.351 -2.197
H12 0.063 -1.351 -2.197
H13 1.417 0.618 -1.514
H14 -1.417 -0.618 -1.514

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.22442.46572.46573.62103.62102.86792.86792.74872.74874.55324.55323.97753.9775
C21.22441.54191.54192.43942.43942.14712.14712.19122.19123.40343.40342.88882.8888
C32.46571.54192.50441.54722.43751.10873.10431.10283.36122.22683.42392.18722.8070
C42.46571.54192.50442.43751.54723.10431.10873.36121.10283.42392.22682.80702.1872
C53.62102.43941.54722.43751.55512.20092.87882.25463.41791.10372.22781.10752.1899
C63.62102.43942.43751.54721.55512.87882.20093.41792.25462.22781.10372.18991.1075
H72.86792.14711.10873.10432.20092.87883.93131.78813.72232.47653.93203.09242.8134
H82.86792.14713.10431.10872.87882.20093.93133.72231.78813.93202.47652.81343.0924
H92.74872.19121.10283.36122.25463.41791.78813.72234.26102.79934.30492.48583.8875
H102.74872.19123.36121.10283.41792.25463.72231.78814.26104.30492.79933.88752.4858
H114.55323.40342.22683.42391.10372.22782.47653.93202.79934.30492.70411.78742.4848
H124.55323.40343.42392.22682.22781.10373.93202.47654.30492.79932.70412.48481.7874
H133.97752.88882.18722.80701.10752.18993.09242.81342.48583.88751.78742.48483.0920
H143.97752.88882.80702.18722.18991.10752.81343.09243.88752.48582.48481.78743.0920

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.696 O1 C2 C4 125.696
C2 C3 C5 104.313 C2 C3 H7 107.069
C2 C3 H9 110.809 C2 C4 C6 104.313
C2 C4 H8 107.069 C2 C4 H10 110.809
C3 C2 C4 108.607 C3 C5 C6 103.576
C3 C5 H11 113.225 C3 C5 H13 109.845
C4 C6 C5 103.576 C4 C6 H12 113.225
C4 C6 H14 109.845 C5 C3 H7 110.847
C5 C3 H9 115.585 C5 C6 H12 112.741
C5 C6 H14 109.515 C6 C4 H8 110.847
C6 C4 H10 115.585 C6 C5 H11 112.741
C6 C5 H13 109.515 H7 C3 H9 107.907
H8 C4 H10 107.907 H11 C5 H13 107.872
H12 C6 H14 107.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability