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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pCVTZ
 hartrees
Energy at 0K-114.498651
Energy at 298.15K 
HF Energy-114.336980
Nuclear repulsion energy31.326320
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 B2PLYP=FULLultrafine/aug-cc-pCVTZ
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 2930 2930 71.48 181.18 0.11 0.19
2 A1 1783 1783 93.53 8.63 0.24 0.39
3 A1 1538 1538 12.92 9.61 0.35 0.52
4 B1 1201 1201 6.15 0.22 0.75 0.86
5 B2 2994 2994 105.47 102.04 0.75 0.86
6 B2 1268 1268 10.58 1.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5857.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5857.1 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 B2PLYP=FULLultrafine/aug-cc-pCVTZ
ABC
9.54088 1.29846 1.14291

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pCVTZ

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 0.936 -1.111
H4 0.000 -0.936 -1.111

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20492.01632.0163
C21.20491.10181.1018
H32.01631.10181.8725
H42.01631.10181.8725

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.817 O1 C2 H4 121.817
H3 C2 H4 116.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.510      
2 C -0.385      
3 H 0.447      
4 H 0.447      


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 -2.404 2.404
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.777 0.000 0.000
y 0.000 -11.706 -0.019
z 0.000 -0.019 -12.369
Traceless
 xyz
x 0.261 0.000 0.000
y 0.000 0.367 -0.019
z 0.000 -0.019 -0.628
Polar
3z2-r2-1.255
x2-y2-0.071
xy0.000
xz0.000
yz-0.019


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.925 0.000 0.000
y 0.000 2.675 0.000
z 0.000 0.000 3.343


<r2> (average value of r2) Å2
<r2> 16.951
(<r2>)1/2 4.117