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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B2PLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-114.463287
Energy at 298.15K-114.464732
HF Energy-114.333305
Nuclear repulsion energy31.351903
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 B2PLYP/6-311+G(3df,2p)
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 2927 2927 70.82 158.96 0.12 0.21
2 A1 1793 1793 93.70 9.23 0.20 0.33
3 A1 1541 1541 12.03 10.11 0.41 0.58
4 B1 1203 1203 5.96 0.11 0.75 0.86
5 B2 2990 2990 106.42 99.84 0.75 0.86
6 B2 1272 1272 10.62 1.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5863.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5863.6 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 B2PLYP/6-311+G(3df,2p)
ABC
9.54068 1.30098 1.14486

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.674
C2 0.000 0.000 -0.529
H3 0.000 0.936 -1.111
H4 0.000 -0.936 -1.111

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20322.01622.0162
C21.20321.10271.1027
H32.01621.10271.8725
H42.01621.10271.8725

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.888 O1 C2 H4 121.888
H3 C2 H4 116.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.476      
2 C 0.198      
3 H 0.139      
4 H 0.139      


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 -2.428 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.758 0.000 0.000
y 0.000 -11.700 0.000
z 0.000 0.000 -12.373
Traceless
 xyz
x 0.278 0.000 0.000
y 0.000 0.366 0.000
z 0.000 0.000 -0.645
Polar
3z2-r2-1.289
x2-y2-0.059
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.789 0.000 0.000
y 0.000 2.547 0.000
z 0.000 0.000 3.230


<r2> (average value of r2) Å2
<r2> 16.997
(<r2>)1/2 4.123