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 C5H6O (Pentadienal)

using model chemistry: B2PLYP=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 B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-269.231158
Energy at 298.15K 
HF Energy-268.857115
Nuclear repulsion energy194.355452
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 B2PLYP=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/aug-cc-pVTZ
ABC
0.96812 0.04503 0.04303

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.093 -1.582 0.000
O2 -1.080 -2.797 0.000
C3 0.100 -0.742 0.000
C4 0.000 0.598 0.000
C5 1.121 1.509 0.000
C6 0.984 2.839 0.000
H7 -2.051 -1.028 0.000
H8 1.058 -1.244 0.000
H9 -0.991 1.042 0.000
H10 2.111 1.071 0.000
H11 0.006 3.301 0.000
H12 1.840 3.495 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.21481.45892.43893.80224.88451.10622.17732.62594.15985.00495.8633
O21.21482.36943.56264.83576.00172.01732.64233.83965.01426.19346.9363
C31.45892.36941.34372.47183.68832.16931.08182.09052.70774.04354.5803
C42.43893.56261.34371.44432.44722.61742.12431.08542.16312.70243.4318
C53.80224.83572.47181.44431.33684.06162.75392.16241.08252.10972.1120
C64.88456.00173.68832.44721.33684.91574.08362.66982.09631.08101.0788
H71.10622.01732.16932.61744.06164.91573.11602.32574.66104.79285.9664
H82.17732.64231.08182.12432.75394.08363.11603.06942.54344.66464.8029
H92.62593.83962.09051.08542.16242.66982.32573.06943.10152.46903.7458
H104.15985.01422.70772.16311.08252.09634.66102.54343.10153.06562.4385
H115.00496.19344.04352.70242.10971.08104.79284.66462.46903.06561.8442
H125.86336.93634.58033.43182.11201.07885.96644.80293.74582.43851.8442

picture of Pentadienal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 120.911 C1 C3 H8 117.180
O2 C1 C3 124.548 O2 C1 H7 120.653
C3 C1 H7 114.798 C3 C4 C5 124.855
C3 C4 H9 118.377 C4 C3 H8 121.909
C4 C5 C6 123.230 C4 C5 H10 117.031
C5 C4 H9 116.768 C5 C6 H11 121.159
C5 C6 H12 121.564 C6 C5 H10 119.739
H11 C6 H12 117.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability