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All results from a given calculation for Mg2 (Magnesium diatomic)

using model chemistry: PBE1PBE/aug-cc-pVTZ

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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-399.937651
Energy at 298.15K-399.937385
HF Energy-399.937651
Nuclear repulsion energy21.253139
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 PBE1PBE/aug-cc-pVTZ
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 91 87 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 45.3 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 43.5 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 PBE1PBE/aug-cc-pVTZ
B
0.10935

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 1.793
Mg2 0.000 0.000 -1.793

Atom - Atom Distances (Å)
  Mg1 Mg2
Mg13.5854
Mg23.5854

picture of Magnesium diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.000      
2 Mg 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 -24.855 0.000 0.000
y 0.000 -24.855 0.000
z 0.000 0.000 -27.240
Traceless
 xyz
x 1.192 0.000 0.000
y 0.000 1.192 0.000
z 0.000 0.000 -2.385
Polar
3z2-r2-4.770
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 18.534 0.000 0.000
y 0.000 18.534 0.000
z 0.000 0.000 37.269


<r2> (average value of r2) Å2
<r2> 93.152
(<r2>)1/2 9.652