return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for Na2 (Sodium diatomic)

using model chemistry: HSEh1PBE/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at HSEh1PBE/SDD
 hartrees
Energy at 0K-324.378968
Energy at 298.15K-324.379927
HF Energy-324.378968
Nuclear repulsion energy20.712818
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 HSEh1PBE/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 158 158 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 78.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 78.8 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 HSEh1PBE/SDD
B
0.15346

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/SDD

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.546
Na2 0.000 0.000 -1.546

Atom - Atom Distances (Å)
  Na1 Na2
Na13.0913
Na23.0913

picture of Sodium diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Na 0.000      
2 Na 0.000      


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 -23.278 0.000 0.000
y 0.000 -23.278 0.000
z 0.000 0.000 -9.703
Traceless
 xyz
x -6.787 0.000 0.000
y 0.000 -6.787 0.000
z 0.000 0.000 13.575
Polar
3z2-r227.150
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 29.892 0.000 0.000
y 0.000 29.892 0.000
z 0.000 0.000 50.439


<r2> (average value of r2) Å2
<r2> 64.273
(<r2>)1/2 8.017