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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: B2PLYP/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/aug-cc-pCVTZ
 hartrees
Energy at 0K-114.470452
Energy at 298.15K 
HF Energy-114.336947
Nuclear repulsion energy31.313922
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/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 2928 2928 71.56 180.81 0.11 0.19
2 A1 1782 1782 93.46 8.57 0.24 0.38
3 A1 1537 1537 12.91 9.70 0.35 0.52
4 B1 1201 1201 6.12 0.22 0.75 0.86
5 B2 2993 2993 105.77 101.94 0.75 0.86
6 B2 1268 1268 10.60 1.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5853.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5853.8 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 B2PLYP/aug-cc-pCVTZ
ABC
9.53517 1.29738 1.14200

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 0.937 -1.111
H4 0.000 -0.937 -1.111

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.20542.01712.0171
C21.20541.10221.1022
H32.01711.10221.8731
H42.01711.10221.8731

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.819 O1 C2 H4 121.819
H3 C2 H4 116.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.472      
2 C -0.405      
3 H 0.439      
4 H 0.439      


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 -2.405 2.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.781 0.000 0.000
y 0.000 -11.707 0.000
z 0.000 0.000 -12.373
Traceless
 xyz
x 0.260 0.000 0.000
y 0.000 0.370 0.000
z 0.000 0.000 -0.629
Polar
3z2-r2-1.259
x2-y2-0.074
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.927 0.000 0.000
y 0.000 2.678 0.000
z 0.000 0.000 3.346


<r2> (average value of r2) Å2
<r2> 17.022
(<r2>)1/2 4.126