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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B97D3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/Def2TZVPP
 hartrees
Energy at 0K-114.487447
Energy at 298.15K-114.488885
HF Energy-114.487447
Nuclear repulsion energy31.236084
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 B97D3/Def2TZVPP
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 2803 2765 80.63 196.43 0.14 0.25
2 A1 1773 1748 105.81 6.15 0.52 0.68
3 A1 1503 1482 8.97 11.45 0.53 0.69
4 B1 1170 1154 3.34 1.50 0.75 0.86
5 B2 2845 2806 171.87 111.76 0.75 0.86
6 B2 1239 1222 10.19 4.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5665.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 5588.1 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 B97D3/Def2TZVPP
ABC
9.40247 1.29304 1.13672

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.676
C2 0.000 0.000 -0.528
H3 0.000 0.943 -1.122
H4 0.000 -0.943 -1.122

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20452.03052.0305
C21.20451.11441.1144
H32.03051.11441.8863
H42.03051.11441.8863

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.186 O1 C2 H4 122.186
H3 C2 H4 115.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.228      
2 C 0.113      
3 H 0.058      
4 H 0.058      


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 -2.193 2.193
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.599 0.000 0.000
y 0.000 -11.687 0.000
z 0.000 0.000 -12.255
Traceless
 xyz
x 0.372 0.000 0.000
y 0.000 0.240 0.000
z 0.000 0.000 -0.612
Polar
3z2-r2-1.224
x2-y20.088
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.594 0.000 0.000
y 0.000 2.530 0.000
z 0.000 0.000 3.225


<r2> (average value of r2) Å2
<r2> 17.029
(<r2>)1/2 4.127