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All results from a given calculation for H2CO (Formaldehyde)

using model chemistry: BLYP/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-114.494058
Energy at 298.15K-114.495491
HF Energy-114.494058
Nuclear repulsion energy30.900924
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 BLYP/daug-cc-pVDZ
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 2787 2787 83.51 213.96 0.11 0.20
2 A1 1724 1724 102.07 7.81 0.33 0.50
3 A1 1472 1472 10.33 9.34 0.43 0.60
4 B1 1150 1150 6.19 0.68 0.75 0.86
5 B2 2846 2846 143.42 143.34 0.75 0.86
6 B2 1209 1209 8.75 1.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5594.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5594.3 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 BLYP/daug-cc-pVDZ
ABC
9.21809 1.26516 1.11248

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.684
C2 0.000 0.000 -0.536
H3 0.000 0.953 -1.129
H4 0.000 -0.953 -1.129

Atom - Atom Distances (Å)
  O1 C2 H3 H4
O11.21942.04772.0477
C21.21941.12221.1222
H32.04771.12221.9050
H42.04771.12221.9050

picture of Formaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.918 O1 C2 H4 121.918
H3 C2 H4 116.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.303      
2 C 1.362      
3 H -0.529      
4 H -0.529      


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 -2.291 2.291
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.878 0.000 0.000
y 0.000 -11.945 0.000
z 0.000 0.000 -12.653
Traceless
 xyz
x 0.421 0.000 0.000
y 0.000 0.320 0.000
z 0.000 0.000 -0.741
Polar
3z2-r2-1.483
x2-y20.068
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.048 0.000 0.000
y 0.000 2.990 0.000
z 0.000 0.000 3.635


<r2> (average value of r2) Å2
<r2> 17.420
(<r2>)1/2 4.174