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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: PBEPBE/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 PBEPBE/Sadlej_pVTZ
 hartrees
Energy at 0K-114.400788
Energy at 298.15K-114.402221
HF Energy-114.400788
Nuclear repulsion energy30.919614
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 PBEPBE/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 2776 2762 76.50      
2 A1 1767 1758 102.79      
3 A1 1452 1444 7.43      
4 B1 1151 1145 5.56      
5 B2 2841 2827 131.04      
6 B2 1203 1197 9.41      

Unscaled Zero Point Vibrational Energy (zpe) 5594.4 cm-1
Scaled (by 0.9949) Zero Point Vibrational Energy (zpe) 5565.9 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 PBEPBE/Sadlej_pVTZ
ABC
9.11417 1.26983 1.11455

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.683
C2 0.000 0.000 -0.534
H3 0.000 0.958 -1.130
H4 0.000 -0.958 -1.130

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.21612.05012.0501
C21.21611.12841.1284
H32.05011.12841.9159
H42.05011.12841.9159

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.907 O1 C2 H4 121.907
H3 C2 H4 116.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Sadlej_pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.409      
2 C 1.397      
3 H -0.494      
4 H -0.494      


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 -2.231 2.231
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.746 0.000 0.000
y 0.000 -11.830 0.000
z 0.000 0.000 -12.532
Traceless
 xyz
x 0.434 0.000 0.000
y 0.000 0.309 0.000
z 0.000 0.000 -0.744
Polar
3z2-r2-1.487
x2-y20.083
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.980 0.000 0.000
y 0.000 2.961 0.000
z 0.000 0.000 3.578


<r2> (average value of r2) Å2
<r2> 17.342
(<r2>)1/2 4.164