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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: wB97X-D/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-114.509195
Energy at 298.15K-114.510642
HF Energy-114.509195
Nuclear repulsion energy31.468457
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/aug-cc-pVTZ
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 2911 2785 70.67 176.21 0.10 0.18
2 A1 1852 1771 118.71 9.43 0.25 0.40
3 A1 1537 1470 11.56 8.53 0.39 0.56
4 B1 1210 1157 6.26 0.15 0.75 0.86
5 B2 2971 2842 107.50 97.28 0.75 0.86
6 B2 1272 1216 12.20 0.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5876.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 5621.2 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/aug-cc-pVTZ
ABC
9.50055 1.31368 1.15410

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.671
C2 0.000 0.000 -0.525
H3 0.000 0.938 -1.109
H4 0.000 -0.938 -1.109

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19622.01252.0125
C21.19621.10521.1052
H32.01251.10521.8765
H42.01251.10521.8765

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.906 O1 C2 H4 121.906
H3 C2 H4 116.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.483      
2 C -0.185      
3 H 0.334      
4 H 0.334      


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 -2.410 2.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.641 0.000 0.000
y 0.000 -11.506 0.000
z 0.000 0.000 -12.191
Traceless
 xyz
x 0.207 0.000 0.000
y 0.000 0.410 0.000
z 0.000 0.000 -0.617
Polar
3z2-r2-1.234
x2-y2-0.135
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.920 0.000 0.000
y 0.000 2.664 0.000
z 0.000 0.000 3.304


<r2> (average value of r2) Å2
<r2> 16.836
(<r2>)1/2 4.103