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All results from a given calculation for Na2O2 (disodium dioxide)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-473.427242
Energy at 298.15K 
HF Energy-473.427242
Nuclear repulsion energy129.259056
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 HF/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 913 831 0.00 53.92 0.47 0.64
2 Ag 375 341 0.00 4.36 0.07 0.12
3 B1u 578 527 170.51 0.00 0.08 0.14
4 B2u 252 229 117.86 0.00 0.72 0.84
5 B3g 517 471 0.00 4.51 0.75 0.86
6 B3u 79 72 136.94 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1357.2 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 1235.6 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 HF/aug-cc-pVTZ
ABC
0.94337 0.09846 0.08915

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.930
Na2 0.000 0.000 -1.930
O3 0.000 0.747 0.000
O4 0.000 -0.747 0.000

Atom - Atom Distances (Å)
  Na1 Na2 O3 O4
Na13.85942.06942.0694
Na23.85942.06942.0694
O32.06942.06941.4948
O42.06942.06941.4948

picture of disodium dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na1 O3 Na2 137.656 Na1 O4 Na2 137.656
O3 Na1 O4 42.344 O3 Na2 O4 42.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.909      
2 Na 0.909      
3 O -0.909      
4 O -0.909      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.951 0.000 0.000
y 0.000 -27.568 0.000
z 0.000 0.000 12.418
Traceless
 xyz
x -14.376 0.000 0.000
y 0.000 -22.801 0.000
z 0.000 0.000 37.177
Polar
3z2-r274.354
x2-y25.617
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.406 0.000 0.000
y 0.000 5.322 0.000
z 0.000 0.000 3.755


<r2> (average value of r2) Å2
<r2> 98.586
(<r2>)1/2 9.929