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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: HF/Sadlej_pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Sadlej_pVTZ
 hartrees
Energy at 0K-113.901771
Energy at 298.15K-113.903236
HF Energy-113.901771
Nuclear repulsion energy31.757106
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 HF/Sadlej_pVTZ
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 3092 2823 61.39      
2 A1 2002 1827 161.78      
3 A1 1626 1485 18.20      
4 B1 1336 1220 2.95      
5 B2 3176 2899 86.73      
6 B2 1351 1234 21.71      

Unscaled Zero Point Vibrational Energy (zpe) 6291.2 cm-1
Scaled (by 0.913) Zero Point Vibrational Energy (zpe) 5743.9 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 HF/Sadlej_pVTZ
ABC
9.56270 1.34100 1.17607

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Sadlej_pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.664
C2 0.000 0.000 -0.519
H3 0.000 0.935 -1.100
H4 0.000 -0.935 -1.100

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.18321.99691.9969
C21.18321.10111.1011
H31.99691.10111.8704
H41.99691.10111.8704

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.860 O1 C2 H4 121.860
H3 C2 H4 116.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Sadlej_pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.503      
2 C 1.461      
3 H -0.479      
4 H -0.479      


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 -2.721 2.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.629 0.000 0.000
y 0.000 -11.460 0.000
z 0.000 0.000 -12.172
Traceless
 xyz
x 0.187 0.000 0.000
y 0.000 0.441 0.000
z 0.000 0.000 -0.628
Polar
3z2-r2-1.256
x2-y2-0.170
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.786 0.000 0.000
y 0.000 2.406 0.000
z 0.000 0.000 3.077


<r2> (average value of r2) Å2
<r2> 16.657
(<r2>)1/2 4.081