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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: wB97X-D/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-114.469564
Energy at 298.15K-114.471010
HF Energy-114.469564
Nuclear repulsion energy31.285332
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/6-31+G**
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 2940 2800 63.92 157.81 0.17 0.29
2 A1 1861 1772 120.55 9.21 0.28 0.44
3 A1 1547 1473 6.41 12.92 0.56 0.72
4 B1 1208 1150 4.94 1.18 0.75 0.86
5 B2 3009 2866 119.57 102.35 0.75 0.86
6 B2 1274 1213 10.83 3.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5918.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 5636.3 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/6-31+G**
ABC
9.45390 1.29676 1.14034

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.675
C2 0.000 0.000 -0.530
H3 0.000 0.941 -1.113
H4 0.000 -0.941 -1.113

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20522.02072.0207
C21.20521.10681.1068
H32.02071.10681.8811
H42.02071.10681.8811

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.808 O1 C2 H4 121.808
H3 C2 H4 116.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.318      
2 C 0.077      
3 H 0.121      
4 H 0.121      


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 -2.582 2.582
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.682 0.000 0.000
y 0.000 -11.583 0.000
z 0.000 0.000 -12.255
Traceless
 xyz
x 0.237 0.000 0.000
y 0.000 0.385 0.000
z 0.000 0.000 -0.622
Polar
3z2-r2-1.244
x2-y2-0.099
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.317 0.000 0.000
y 0.000 2.265 0.000
z 0.000 0.000 3.136


<r2> (average value of r2) Å2
<r2> 16.976
(<r2>)1/2 4.120