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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-114.549401
Energy at 298.15K-114.550846
HF Energy-114.549401
Nuclear repulsion energy31.415728
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/6-311+G(3df,2p)
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 2880 2785 71.80 160.76 0.13 0.22
2 A1 1823 1762 113.28 10.02 0.25 0.41
3 A1 1532 1482 11.22 8.97 0.46 0.63
4 B1 1200 1160 5.67 0.11 0.75 0.86
5 B2 2935 2838 116.62 102.83 0.75 0.86
6 B2 1266 1224 11.55 1.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5817.8 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 5625.8 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/6-311+G(3df,2p)
ABC
9.50160 1.30833 1.14998

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

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 -0.526
H3 0.000 0.938 -1.112
H4 0.000 -0.938 -1.112

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.19842.01632.0163
C21.19841.10641.1064
H32.01631.10641.8764
H42.01631.10641.8764

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 122.005 O1 C2 H4 122.005
H3 C2 H4 115.991
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.458      
2 C 0.176      
3 H 0.141      
4 H 0.141      


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 -2.413 2.413
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.738 0.000 0.000
y 0.000 -11.684 0.000
z 0.000 0.000 -12.396
Traceless
 xyz
x 0.301 0.000 0.000
y 0.000 0.383 0.000
z 0.000 0.000 -0.685
Polar
3z2-r2-1.369
x2-y2-0.055
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.799 0.000 0.000
y 0.000 2.585 0.000
z 0.000 0.000 3.242


<r2> (average value of r2) Å2
<r2> 16.969
(<r2>)1/2 4.119