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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3LYP/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 B3LYP/cc-pCVTZ
 hartrees
Energy at 0K-114.551599
Energy at 298.15K 
HF Energy-114.551599
Nuclear repulsion energy31.406179
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 B3LYP/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 2872 2872 68.21 183.44 0.14 0.25
2 A1 1824 1824 105.92 5.18 0.59 0.74
3 A1 1535 1535 9.74 11.62 0.54 0.70
4 B1 1203 1203 3.11 1.02 0.75 0.86
5 B2 2925 2925 142.68 98.79 0.75 0.86
6 B2 1268 1268 12.55 3.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5813.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5813.7 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 B3LYP/cc-pCVTZ
ABC
9.51938 1.30682 1.14907

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.673
C2 0.000 0.000 -0.526
H3 0.000 0.937 -1.114
H4 0.000 -0.937 -1.114

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19862.01822.0182
C21.19861.10691.1069
H32.01821.10691.8746
H42.01821.10691.8746

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.134 O1 C2 H4 122.134
H3 C2 H4 115.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.274      
2 C 0.192      
3 H 0.041      
4 H 0.041      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.278 2.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.625 0.000 0.000
y 0.000 -11.645 0.000
z 0.000 0.000 -12.182
Traceless
 xyz
x 0.288 0.000 0.000
y 0.000 0.258 0.000
z 0.000 0.000 -0.546
Polar
3z2-r2-1.092
x2-y20.020
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.474 0.000 0.000
y 0.000 2.382 0.000
z 0.000 0.000 3.025


<r2> (average value of r2) Å2
<r2> 16.903
(<r2>)1/2 4.111