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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: wB97X-D/aug-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 wB97X-D/aug-cc-pVQZ
 hartrees
Energy at 0K-114.517671
Energy at 298.15K 
HF Energy-114.517671
Nuclear repulsion energy31.498139
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 wB97X-D/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at wB97X-D/aug-cc-pVQZ
ABC
9.49578 1.31679 1.15643

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.670
C2 0.000 0.000 -0.524
H3 0.000 0.938 -1.108
H4 0.000 -0.938 -1.108

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19472.01112.0111
C21.19471.10531.1053
H32.01111.10531.8770
H42.01111.10531.8770

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.892 O1 C2 H4 121.892
H3 C2 H4 116.216
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.447      
2 C -0.030      
3 H 0.238      
4 H 0.238      


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 -2.399 2.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.635 0.000 0.000
y 0.000 -11.493 0.000
z 0.000 0.000 -12.175
Traceless
 xyz
x 0.199 0.000 0.000
y 0.000 0.412 0.000
z 0.000 0.000 -0.611
Polar
3z2-r2-1.221
x2-y2-0.142
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 16.813
(<r2>)1/2 4.100