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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-113.899663
Energy at 298.15K-113.901097
HF Energy-113.899663
Nuclear repulsion energy31.148281
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 LSDA/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 2800 2748 56.36      
2 A1 1841 1807 90.20      
3 A1 1495 1468 4.99      
4 B1 1150 1129 2.87      
5 B2 2848 2794 165.49      
6 B2 1229 1206 8.07      

Unscaled Zero Point Vibrational Energy (zpe) 5681.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 5575.4 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 LSDA/6-31G**
ABC
9.30282 1.28683 1.13046

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 -0.527
H3 0.000 0.948 -1.130
H4 0.000 -0.948 -1.130

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20542.04202.0420
C21.20541.12371.1237
H32.04201.12371.8963
H42.04201.12371.8963

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.458 O1 C2 H4 122.458
H3 C2 H4 115.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.291      
2 C 0.080      
3 H 0.106      
4 H 0.106      


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 -2.045 2.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.496 0.000 0.000
y 0.000 -11.547 0.000
z 0.000 0.000 -11.978
Traceless
 xyz
x 0.266 0.000 0.000
y 0.000 0.190 0.000
z 0.000 0.000 -0.457
Polar
3z2-r2-0.913
x2-y20.051
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.054 0.000 0.000
y 0.000 2.260 0.000
z 0.000 0.000 2.805


<r2> (average value of r2) Å2
<r2> 16.992
(<r2>)1/2 4.122