return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for Ne2 (Neon diatomic)

using model chemistry: mPW1PW91/6-311G**

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 mPW1PW91/6-311G**
 hartrees
Energy at 0K-257.853558
Energy at 298.15K-257.854167
HF Energy-257.853558
Nuclear repulsion energy19.146242
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 mPW1PW91/6-311G**
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 70 67 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 34.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 33.4 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 mPW1PW91/6-311G**
B
0.22076

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ne1 0.000 0.000 1.382
Ne2 0.000 0.000 -1.382

Atom - Atom Distances (Å)
  Ne1 Ne2
Ne12.7639
Ne22.7639

picture of Neon diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ne 0.000      
2 Ne 0.000      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -8.298 0.000 0.000
y 0.000 -8.298 0.000
z 0.000 0.000 -8.287
Traceless
 xyz
x -0.005 0.000 0.000
y 0.000 -0.005 0.000
z 0.000 0.000 0.011
Polar
3z2-r20.022
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 0.166 0.000 0.000
y 0.000 0.166 0.000
z 0.000 0.000 0.174


<r2> (average value of r2) Å2
<r2> 43.375
(<r2>)1/2 6.586