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 CH3CH2CHO (Propanal)

using model chemistry: CCSD=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-192.969355
Energy at 298.15K 
HF Energy-192.037864
Nuclear repulsion energy119.237376
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=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/cc-pVQZ
ABC
0.56431 0.19912 0.15548

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.443 0.450 0.000
C2 0.000 0.910 0.000
C3 -0.993 -0.214 0.000
O4 -0.703 -1.378 0.000
H5 2.116 1.301 0.000
H6 1.653 -0.157 0.874
H7 1.653 -0.157 -0.874
H8 -0.224 1.533 0.867
H9 -0.224 1.533 -0.867
H10 -2.051 0.095 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51412.52432.81881.08551.08521.08522.16882.16883.5114
C21.51411.49922.39342.15202.15332.15331.09111.09112.2067
C32.52431.49921.20013.45842.78752.78752.09612.09611.1019
O42.81882.39341.20013.88922.79422.79423.07523.07521.9965
H51.08552.15203.45843.88921.76241.76242.50652.50654.3380
H61.08522.15332.78752.79421.76241.74892.52663.06843.8142
H71.08522.15332.78752.79421.76241.74893.06842.52663.8142
H82.16881.09112.09613.07522.50652.52663.06841.73352.4812
H92.16881.09112.09613.07522.50653.06842.52661.73352.4812
H103.51142.20671.10191.99654.33803.81423.81422.48122.4812

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.798 C1 C2 H8 111.680
C1 C2 H9 111.680 C2 C1 H5 110.671
C2 C1 H6 110.786 C2 C1 H7 110.786
C2 C3 O4 124.545 C2 C3 H10 115.219
C3 C2 H8 106.983 C3 C2 H9 106.983
O4 C3 H10 120.236 H5 C1 H6 108.562
H5 C1 H7 108.562 H6 C1 H7 107.369
H8 C2 H9 105.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability