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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3LYPultrafine/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/6-31G**
 hartrees
Energy at 0K-114.503199
Energy at 298.15K-114.504644
HF Energy-114.503199
Nuclear repulsion energy31.221160
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 B3LYPultrafine/6-31G**
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 2897 2784 54.64 153.20 0.17 0.28
2 A1 1847 1775 96.69 3.22 0.41 0.58
3 A1 1555 1494 6.86 14.58 0.63 0.77
4 B1 1201 1154 1.56 2.00 0.75 0.86
5 B2 2954 2838 159.65 75.37 0.75 0.86
6 B2 1275 1225 12.69 7.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5864.2 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 5634.3 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 B3LYPultrafine/6-31G**
ABC
9.51342 1.28848 1.13479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.678
C2 0.000 0.000 -0.529
H3 0.000 0.938 -1.124
H4 0.000 -0.938 -1.124

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20652.03112.0311
C21.20651.11061.1106
H32.03111.11061.8752
H42.03111.11061.8752

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.407 O1 C2 H4 122.407
H3 C2 H4 115.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.339      
2 C 0.176      
3 H 0.082      
4 H 0.082      


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 -2.182 2.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.393 0.000 0.000
y 0.000 -11.500 0.000
z 0.000 0.000 -11.941
Traceless
 xyz
x 0.328 0.000 0.000
y 0.000 0.167 0.000
z 0.000 0.000 -0.495
Polar
3z2-r2-0.990
x2-y20.107
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.034 0.000 0.000
y 0.000 2.115 0.000
z 0.000 0.000 2.744


<r2> (average value of r2) Å2
<r2> 16.890
(<r2>)1/2 4.110