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

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-474.882574
Energy at 298.15K 
HF Energy-474.882574
Nuclear repulsion energy127.653957
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 B3PW91/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 750 724 0.00 12.18 0.23 0.38
2 Ag 354 341 0.00 33.18 0.07 0.13
3 B1u 553 533 147.30 0.00 0.00 0.00
4 B2u 245 236 111.84 0.00 0.00 0.00
5 B3g 481 464 0.00 9.09 0.75 0.86
6 B3u 60 58 117.84 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1221.2 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 1177.9 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 B3PW91/aug-cc-pVDZ
ABC
0.86456 0.09823 0.08821

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.932
Na2 0.000 0.000 -1.932
O3 0.000 0.781 0.000
O4 0.000 -0.781 0.000

Atom - Atom Distances (Å)
  Na1 Na2 O3 O4
Na13.86392.08372.0837
Na23.86392.08372.0837
O32.08372.08371.5614
O42.08372.08371.5614

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 135.992 Na1 O4 Na2 135.992
O3 Na1 O4 44.008 O3 Na2 O4 44.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.809      
2 Na 0.809      
3 O -0.809      
4 O -0.809      


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 -23.375 0.000 0.000
y 0.000 -28.486 0.000
z 0.000 0.000 10.953
Traceless
 xyz
x -14.609 0.000 0.000
y 0.000 -22.275 0.000
z 0.000 0.000 36.884
Polar
3z2-r273.767
x2-y25.111
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.823 0.000 0.000
y 0.000 5.939 0.000
z 0.000 0.000 6.532


<r2> (average value of r2) Å2
<r2> 100.382
(<r2>)1/2 10.019