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

using model chemistry: HF/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-473.385419
Energy at 298.15K 
HF Energy-473.385419
Nuclear repulsion energy129.130341
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-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 Ag 886 807 0.00 68.74 0.42 0.59
2 Ag 378 344 0.00 3.61 0.12 0.21
3 B1u 584 532 175.47 0.00 0.03 0.05
4 B2u 255 232 118.57 0.00 0.75 0.85
5 B3g 518 472 0.00 5.13 0.75 0.86
6 B3u 71 65 138.69 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1345.7 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 1225.4 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-pVDZ
ABC
0.93183 0.09863 0.08919

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.928
Na2 0.000 0.000 -1.928
O3 0.000 0.752 0.000
O4 0.000 -0.752 0.000

Atom - Atom Distances (Å)
  Na1 Na2 O3 O4
Na13.85612.06952.0695
Na23.85612.06952.0695
O32.06952.06951.5040
O42.06952.06951.5040

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 137.384 Na1 O4 Na2 137.384
O3 Na1 O4 42.616 O3 Na2 O4 42.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.806      
2 Na 0.806      
3 O -0.806      
4 O -0.806      


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 -22.200 0.000 0.000
y 0.000 -27.558 0.000
z 0.000 0.000 12.622
Traceless
 xyz
x -14.732 0.000 0.000
y 0.000 -22.769 0.000
z 0.000 0.000 37.501
Polar
3z2-r275.002
x2-y25.358
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.132 0.000 0.000
y 0.000 5.117 0.000
z 0.000 0.000 3.640


<r2> (average value of r2) Å2
<r2> 98.561
(<r2>)1/2 9.928