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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: wB97X-D/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-31G(2df,p)
 hartrees
Energy at 0K-114.470088
Energy at 298.15K-114.471535
HF Energy-114.470088
Nuclear repulsion energy31.418200
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 wB97X-D/6-31G(2df,p)
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 2904 2904 57.61 143.95 0.16 0.28
2 A1 1879 1879 102.64 4.50 0.34 0.51
3 A1 1551 1551 7.12 12.37 0.59 0.74
4 B1 1213 1213 2.26 1.51 0.75 0.86
5 B2 2960 2960 139.49 72.51 0.75 0.86
6 B2 1282 1282 14.40 4.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5893.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5893.9 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 wB97X-D/6-31G(2df,p)
ABC
9.51452 1.30802 1.14993

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.673
C2 0.000 0.000 -0.524
H3 0.000 0.938 -1.117
H4 0.000 -0.938 -1.117

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19692.02062.0206
C21.19691.10931.1093
H32.02061.10931.8751
H42.02061.10931.8751

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.311 O1 C2 H4 122.311
H3 C2 H4 115.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.191      
2 C -0.039      
3 H 0.115      
4 H 0.115      


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 -2.203 2.203
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.357 0.000 0.000
y 0.000 -11.325 0.000
z 0.000 0.000 -11.781
Traceless
 xyz
x 0.195 0.000 0.000
y 0.000 0.244 0.000
z 0.000 0.000 -0.439
Polar
3z2-r2-0.879
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 1.290 0.000 0.000
y 0.000 2.261 0.000
z 0.000 0.000 2.747


<r2> (average value of r2) Å2
<r2> 16.698
(<r2>)1/2 4.086