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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: CID/daug-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 CID/daug-cc-pVTZ
 hartrees
Energy at 0K-153.503458
Energy at 298.15K 
HF Energy-152.978262
Nuclear repulsion energy70.271389
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 CID/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CID/daug-cc-pVTZ
ABC
1.93252 0.34391 0.30838

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.234 0.396 0.000
C2 -1.160 -0.146 0.000
O3 1.221 -0.276 0.000
H4 0.315 1.492 0.000
H5 -1.148 -1.227 0.000
H6 -1.689 0.222 0.874
H7 -1.689 0.222 -0.874

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.49591.19491.09862.13162.11952.1195
C21.49592.38512.20431.08081.08571.0857
O31.19492.38511.98732.55263.07963.0796
H41.09862.20431.98733.08732.52832.5283
H52.13161.08082.55263.08731.77661.7766
H62.11951.08573.07962.52831.77661.7471
H72.11951.08573.07962.52831.77661.7471

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.601 C1 C2 H6 109.343
C1 C2 H7 109.343 C2 C1 O3 124.470
C2 C1 H4 115.488 O3 C1 H4 120.043
H5 C2 H6 110.172 H5 C2 H7 110.172
H6 C2 H7 107.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability