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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: CCSD=FULL/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 CCSD=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-153.628893
Energy at 298.15K 
HF Energy-152.977783
Nuclear repulsion energy70.035130
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/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/daug-cc-pVTZ
ABC
1.91962 0.34204 0.30669

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.231 0.398 0.000
C2 -1.162 -0.148 0.000
O3 1.226 -0.276 0.000
H4 0.309 1.497 0.000
H5 -1.147 -1.232 -0.000
H6 -1.694 0.221 0.877
H7 -1.694 0.221 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.49621.20211.10212.13442.12282.1228
C21.49622.39192.20691.08481.08971.0897
O31.20212.39191.99662.55823.08943.0894
H41.10212.20691.99663.09352.53222.5322
H52.13441.08482.55823.09351.78311.7831
H62.12281.08973.08942.53221.78311.7539
H72.12281.08973.08942.53221.78311.7539

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.566 C1 C2 H6 109.348
C1 C2 H7 109.348 C2 C1 O3 124.501
C2 C1 H4 115.449 O3 C1 H4 120.051
H5 C2 H6 110.173 H5 C2 H7 110.172
H6 C2 H7 107.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability