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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3LYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-114.520557
Energy at 298.15K-114.522000
HF Energy-114.520557
Nuclear repulsion energy31.191219
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 B3LYP/aug-cc-pVDZ
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 2891 2805 71.51 185.20 0.11 0.20
2 A1 1802 1749 108.81 8.96 0.33 0.49
3 A1 1513 1469 12.71 8.49 0.43 0.60
4 B1 1194 1159 6.12 0.23 0.75 0.86
5 B2 2959 2871 115.88 109.14 0.75 0.86
6 B2 1246 1209 11.14 1.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5802.8 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 5631.1 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 B3LYP/aug-cc-pVDZ
ABC
9.33897 1.29054 1.13385

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.677
C2 0.000 0.000 -0.530
H3 0.000 0.946 -1.118
H4 0.000 -0.946 -1.118

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20732.02922.0292
C21.20731.11401.1140
H32.02921.11401.8927
H42.02921.11401.8927

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.841 O1 C2 H4 121.841
H3 C2 H4 116.319
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.349      
2 C 0.873      
3 H -0.262      
4 H -0.262      


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 -2.409 2.409
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.771 0.000 0.000
y 0.000 -11.739 0.000
z 0.000 0.000 -12.492
Traceless
 xyz
x 0.344 0.000 0.000
y 0.000 0.393 0.000
z 0.000 0.000 -0.737
Polar
3z2-r2-1.474
x2-y2-0.032
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.876 0.000 0.000
y 0.000 2.687 0.000
z 0.000 0.000 3.390


<r2> (average value of r2) Å2
<r2> 17.141
(<r2>)1/2 4.140