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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3PW91/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pCVTZ
 hartrees
Energy at 0K-114.502473
Energy at 298.15K 
HF Energy-114.502473
Nuclear repulsion energy31.426527
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 B3PW91/cc-pCVTZ
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 2878 2878 68.50 180.95 0.14 0.24
2 A1 1839 1839 106.64 5.39 0.55 0.71
3 A1 1530 1530 9.16 11.16 0.54 0.70
4 B1 1201 1201 3.46 0.95 0.75 0.86
5 B2 2932 2932 139.28 97.09 0.75 0.86
6 B2 1264 1264 12.20 3.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5821.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5821.3 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 B3PW91/cc-pCVTZ
ABC
9.48829 1.30969 1.15084

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.672
C2 0.000 0.000 -0.525
H3 0.000 0.939 -1.114
H4 0.000 -0.939 -1.114

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19702.01802.0180
C21.19701.10851.1085
H32.01801.10851.8777
H42.01801.10851.8777

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.117 O1 C2 H4 122.117
H3 C2 H4 115.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.267      
2 C 0.181      
3 H 0.043      
4 H 0.043      


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 -2.266 2.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.537 0.000 0.000
y 0.000 -11.515 0.000
z 0.000 0.000 -12.049
Traceless
 xyz
x 0.245 0.000 0.000
y 0.000 0.278 0.000
z 0.000 0.000 -0.523
Polar
3z2-r2-1.047
x2-y2-0.022
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.474 0.000 0.000
y 0.000 2.368 0.000
z 0.000 0.000 3.011


<r2> (average value of r2) Å2
<r2> 16.820
(<r2>)1/2 4.101