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

using model chemistry: B3LYP/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 B3LYP/SDD
 hartrees
Energy at 0K-400.156078
Energy at 298.15K-400.155698
HF Energy-400.156078
Nuclear repulsion energy18.342659
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/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 31 30 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15.5 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 14.9 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 B3LYP/SDD
B
0.08145

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 2.077
Mg2 0.000 0.000 -2.077

Atom - Atom Distances (Å)
  Mg1 Mg2
Mg14.1543
Mg24.1543

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/SDD 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 -25.044 0.000 0.000
y 0.000 -25.044 0.000
z 0.000 0.000 -25.878
Traceless
 xyz
x 0.417 0.000 0.000
y 0.000 0.417 0.000
z 0.000 0.000 -0.834
Polar
3z2-r2-1.668
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 18.380 0.000 0.000
y 0.000 18.380 0.000
z 0.000 0.000 31.056


<r2> (average value of r2) Å2
<r2> 119.367
(<r2>)1/2 10.926