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

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-473.350052
Energy at 298.15K 
HF Energy-473.350052
Nuclear repulsion energy129.887733
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/6-31G(2df,p)
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 908 823 0.00 51.06 0.38 0.55
2 Ag 390 353 0.00 4.11 0.18 0.31
3 B1u 597 540 178.88 0.00 0.15 0.25
4 B2u 264 239 101.50 0.00 0.72 0.84
5 B3g 531 481 0.00 4.19 0.75 0.86
6 B3u 76 69 124.52 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1383.2 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 1252.5 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/6-31G(2df,p)
ABC
0.93929 0.09992 0.09032

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.915
Na2 0.000 0.000 -1.915
O3 0.000 0.749 0.000
O4 0.000 -0.749 0.000

Atom - Atom Distances (Å)
  Na1 Na2 O3 O4
Na13.83102.05672.0567
Na23.83102.05672.0567
O32.05672.05671.4980
O42.05672.05671.4980

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 137.286 Na1 O4 Na2 137.286
O3 Na1 O4 42.714 O3 Na2 O4 42.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.665      
2 Na 0.665      
3 O -0.665      
4 O -0.665      


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 -21.681 0.000 0.000
y 0.000 -26.884 0.000
z 0.000 0.000 11.209
Traceless
 xyz
x -13.843 0.000 0.000
y 0.000 -21.648 0.000
z 0.000 0.000 35.491
Polar
3z2-r270.983
x2-y25.203
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.960 0.000 0.000
y 0.000 4.748 0.000
z 0.000 0.000 3.924


<r2> (average value of r2) Å2
<r2> 97.474
(<r2>)1/2 9.873