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All results from a given calculation for H2CO (Formaldehyde)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-311+G(3df,2pd)
 hartrees
Energy at 0K-113.947056
Energy at 298.15K-113.948488
HF Energy-113.947056
Nuclear repulsion energy31.363095
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 LSDA/6-311+G(3df,2pd)
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 2792 2792 71.12      
2 A1 1820 1820 107.53      
3 A1 1466 1466 8.38      
4 B1 1146 1146 7.11      
5 B2 2844 2844 116.77      
6 B2 1218 1218 8.23      

Unscaled Zero Point Vibrational Energy (zpe) 5642.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5642.9 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 LSDA/6-311+G(3df,2pd)
ABC
9.27012 1.30940 1.14734

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

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 -0.524
H3 0.000 0.950 -1.116
H4 0.000 -0.950 -1.116

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19642.02512.0251
C21.19641.11931.1193
H32.02511.11931.8997
H42.02511.11931.8997

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.938 O1 C2 H4 121.938
H3 C2 H4 116.124
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.437      
2 C 0.264      
3 H 0.087      
4 H 0.087      


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 -2.285 2.285
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.819 0.000 0.000
y 0.000 -11.724 0.000
z 0.000 0.000 -12.449
Traceless
 xyz
x 0.267 0.000 0.000
y 0.000 0.410 0.000
z 0.000 0.000 -0.678
Polar
3z2-r2-1.355
x2-y2-0.096
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.834 0.000 0.000
y 0.000 2.751 0.000
z 0.000 0.000 3.328


<r2> (average value of r2) Å2
<r2> 17.054
(<r2>)1/2 4.130