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 C5H10O (3-Pentanone)

using model chemistry: CCSD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-271.317761
Energy at 298.15K 
HF Energy-270.129853
Nuclear repulsion energy239.137360
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(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/cc-pVTZ
ABC
0.29703 0.06540 0.05579

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.283
C2 0.000 0.000 0.066
C3 0.000 1.291 -0.737
C4 0.000 -1.291 -0.737
C5 0.000 2.540 0.135
C6 0.000 -2.540 0.135
H7 0.872 1.269 -1.400
H8 -0.872 1.269 -1.400
H9 -0.872 -1.269 -1.400
H10 0.872 -1.269 -1.400
H11 0.000 3.441 -0.481
H12 -0.879 2.559 0.781
H13 0.879 2.559 0.781
H14 0.000 -3.441 -0.481
H15 0.879 -2.559 0.781
H16 -0.879 -2.559 0.781

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21692.39772.39772.78752.78753.09403.09403.09403.09403.86662.75192.75193.86662.75192.7519
C21.21691.52061.52062.54102.54102.12662.12662.12662.12663.48392.79852.79853.48392.79852.7985
C32.39771.52062.58171.52383.92911.09591.09592.78442.78442.16502.16462.16464.73854.23084.2308
C42.39771.52062.58173.92911.52382.78442.78441.09591.09594.73854.23084.23082.16502.16462.1646
C52.78752.54101.52383.92915.08022.17612.17614.19854.19851.09121.09051.09056.01245.21445.2144
C62.78752.54103.92911.52385.08024.19854.19852.17612.17616.01245.21445.21441.09121.09051.0905
H73.09402.12661.09592.78442.17614.19851.74443.07952.53782.51453.08032.53444.87714.40594.7410
H83.09402.12661.09592.78442.17614.19851.74442.53783.07952.51452.53443.08034.87714.74104.4059
H93.09402.12662.78441.09594.19852.17613.07952.53781.74444.87714.40594.74102.51453.08032.5344
H103.09402.12662.78441.09594.19852.17612.53783.07951.74444.87714.74104.40592.51452.53443.0803
H113.86663.48392.16504.73851.09126.01242.51452.51454.87714.87711.77241.77246.88136.19366.1936
H122.75192.79852.16464.23081.09055.21443.08032.53444.40594.74101.77241.75706.19365.41135.1181
H132.75192.79852.16464.23081.09055.21442.53443.08034.74104.40591.77241.75706.19365.11815.4113
H143.86663.48394.73852.16506.01241.09124.87714.87712.51452.51456.88136.19366.19361.77241.7724
H152.75192.79854.23082.16465.21441.09054.40594.74103.08032.53446.19365.41135.11811.77241.7570
H162.75192.79854.23082.16465.21441.09054.74104.40592.53443.08036.19365.11815.41131.77241.7570

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 121.907 O1 C2 C4 121.907
C2 C3 C5 113.157 C2 C3 H7 107.624
C2 C3 H8 107.624 C2 C4 C6 113.157
C2 C4 H9 107.624 C2 C4 H10 107.624
C3 C2 C4 116.186 C3 C5 H11 110.683
C3 C5 H12 110.693 C3 C5 H13 110.693
C4 C6 H14 110.683 C4 C6 H15 110.693
C4 C6 H16 110.693 C5 C3 H7 111.282
C5 C3 H8 111.282 C6 C4 H9 111.282
C6 C4 H10 111.282 H7 C3 H8 105.482
H9 C4 H10 105.482 H11 C5 H12 108.664
H11 C5 H13 108.664 H12 C5 H13 107.344
H14 C6 H15 108.664 H14 C6 H16 108.664
H15 C6 H16 107.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability