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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: CCD/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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-153.568434
Energy at 298.15K 
HF Energy-152.977349
Nuclear repulsion energy69.871097
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 CCD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/aug-cc-pVTZ
ABC
1.90836 0.34044 0.30516

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.233 0.400 0.000
C2 -1.165 -0.147 0.000
O3 1.228 -0.278 0.000
H4 0.315 1.501 0.000
H5 -1.150 -1.234 0.000
H6 -1.699 0.221 0.878
H7 -1.699 0.221 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.50171.20391.10462.14102.13012.1301
C21.50172.39722.21581.08701.09191.0919
O31.20392.39721.99972.56383.09693.0969
H41.10462.21581.99973.10332.54332.5433
H52.14101.08702.56383.10331.78631.7863
H62.13011.09193.09692.54331.78631.7567
H72.13011.09193.09692.54331.78631.7567

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.578 C1 C2 H6 109.414
C1 C2 H7 109.414 C2 C1 O3 124.387
C2 C1 H4 115.628 O3 C1 H4 119.985
H5 C2 H6 110.131 H5 C2 H7 110.131
H6 C2 H7 107.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability