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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: BLYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/SDD
 hartrees
Energy at 0K-114.460474
Energy at 298.15K-114.461903
HF Energy-114.460474
Nuclear repulsion energy30.288829
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 BLYP/SDD
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 2853 2837 82.09      
2 A1 1633 1624 52.13      
3 A1 1482 1474 17.22      
4 B1 1158 1152 19.45      
5 B2 2921 2905 158.75      
6 B2 1212 1206 2.95      

Unscaled Zero Point Vibrational Energy (zpe) 5629.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 5598.5 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 BLYP/SDD
ABC
9.32769 1.20276 1.06538

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.701
C2 0.000 0.000 -0.553
H3 0.000 0.947 -1.147
H4 0.000 -0.947 -1.147

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.25442.07642.0764
C21.25441.11761.1176
H32.07641.11761.8938
H42.07641.11761.8938

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.082 O1 C2 H4 122.082
H3 C2 H4 115.835
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.166      
2 C -0.179      
3 H 0.173      
4 H 0.173      


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 -2.609 2.609
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.707 0.000 0.000
y 0.000 -11.417 0.000
z 0.000 0.000 -12.221
Traceless
 xyz
x 0.111 0.000 0.000
y 0.000 0.548 0.000
z 0.000 0.000 -0.659
Polar
3z2-r2-1.318
x2-y2-0.291
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.983 0.000 0.000
y 0.000 1.802 0.000
z 0.000 0.000 2.766


<r2> (average value of r2) Å2
<r2> 17.551
(<r2>)1/2 4.189