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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3LYPultrafine/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-114.559669
Energy at 298.15K-114.561115
HF Energy-114.559669
Nuclear repulsion energy31.427433
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/cc-pVQZ
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 2878 2878 71.01      
2 A1 1821 1821 110.65      
3 A1 1535 1535 10.91      
4 B1 1203 1203 3.71      
5 B2 2933 2933 129.55      
6 B2 1269 1269 12.36      

Unscaled Zero Point Vibrational Energy (zpe) 5819.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5819.3 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/cc-pVQZ
ABC
9.51735 1.30904 1.15076

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.672
C2 0.000 0.000 -0.526
H3 0.000 0.937 -1.112
H4 0.000 -0.937 -1.112

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19792.01602.0160
C21.19791.10601.1060
H32.01601.10601.8748
H42.01601.10601.8748

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.048 O1 C2 H4 122.048
H3 C2 H4 115.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.313      
2 C 0.288      
3 H 0.012      
4 H 0.012      


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 -2.337 2.337
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.689 0.000 0.000
y 0.000 -11.667 0.000
z 0.000 0.000 -12.309
Traceless
 xyz
x 0.299 0.000 0.000
y 0.000 0.332 0.000
z 0.000 0.000 -0.631
Polar
3z2-r2-1.262
x2-y2-0.022
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.678 0.000 0.000
y 0.000 2.536 0.000
z 0.000 0.000 3.181


<r2> (average value of r2) Å2
<r2> 16.932
(<r2>)1/2 4.115