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

using model chemistry: B3LYP/6-31G(2df,p)

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 B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-400.158664
Energy at 298.15K-400.158331
HF Energy-400.158664
Nuclear repulsion energy19.867157
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 B3LYP/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 Σg 55 53 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 27.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 26.5 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 B3LYP/6-31G(2df,p)
B
0.09555

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 1.918
Mg2 0.000 0.000 -1.918

Atom - Atom Distances (Å)
  Mg1 Mg2
Mg13.8356
Mg23.8356

picture of Magnesium diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) 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 -25.032 0.000 0.000
y 0.000 -25.032 0.000
z 0.000 0.000 -26.768
Traceless
 xyz
x 0.868 0.000 0.000
y 0.000 0.868 0.000
z 0.000 0.000 -1.735
Polar
3z2-r2-3.471
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 18.350 0.000 0.000
y 0.000 18.350 0.000
z 0.000 0.000 33.517


<r2> (average value of r2) Å2
<r2> 104.265
(<r2>)1/2 10.211