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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B2PLYP=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-114.471425
Energy at 298.15K-114.472872
HF Energy-114.333417
Nuclear repulsion energy31.359965
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2929 2799 68.28 180.01 0.14 0.24
2 A1 1800 1721 87.20 4.08 0.51 0.68
3 A1 1550 1482 10.51 12.59 0.51 0.67
4 B1 1213 1159 3.47 0.94 0.75 0.86
5 B2 2984 2852 133.17 95.58 0.75 0.86
6 B2 1279 1222 11.85 3.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5877.2 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 5617.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/cc-pVTZ
ABC
9.59475 1.30023 1.14506

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.675
C2 0.000 0.000 -0.528
H3 0.000 0.934 -1.113
H4 0.000 -0.934 -1.113

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20292.01712.0171
C21.20291.10181.1018
H32.01711.10181.8673
H42.01711.10181.8673

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.073 O1 C2 H4 122.073
H3 C2 H4 115.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability