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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B2PLYP=FULLultrafine/cc-pCVTZ

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=FULLultrafine/cc-pCVTZ
 hartrees
Energy at 0K-114.493968
Energy at 298.15K 
HF Energy-114.334600
Nuclear repulsion energy31.354325
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=FULLultrafine/cc-pCVTZ
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 2922 2922 67.26 180.79 0.14 0.24
2 A1 1797 1797 86.31 4.07 0.52 0.69
3 A1 1546 1546 10.37 12.52 0.51 0.68
4 B1 1209 1209 3.43 0.93 0.75 0.86
5 B2 2982 2982 130.57 96.33 0.75 0.86
6 B2 1276 1276 11.59 3.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5866.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5866.0 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=FULLultrafine/cc-pCVTZ
ABC
9.56976 1.30037 1.14481

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

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 0.935 -1.113
H4 0.000 -0.935 -1.113

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20302.01722.0172
C21.20301.10251.1025
H32.01721.10251.8697
H42.01721.10251.8697

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.016 O1 C2 H4 122.016
H3 C2 H4 115.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.313      
2 C 0.233      
3 H 0.040      
4 H 0.040      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.464 0.000 0.000
y 0.000 2.335 0.000
z 0.000 0.000 3.010


<r2> (average value of r2) Å2
<r2> 16.870
(<r2>)1/2 4.107