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All results from a given calculation for MgF2 (Magnesium fluoride)

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-49.347341
Energy at 298.15K-49.347736
HF Energy-49.347341
Nuclear repulsion energy15.774752
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/CEP-31G*
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 539 520 0.00      
2 Σu 898 867 145.59      
3 Πu 178 172 133.58      
3 Πu 178 172 133.58      

Unscaled Zero Point Vibrational Energy (zpe) 896.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 865.7 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/CEP-31G*
B
0.14304

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 0.000
F2 0.000 0.000 1.761
F3 0.000 0.000 -1.761

Atom - Atom Distances (Å)
  Mg1 F2 F3
Mg11.76121.7612
F21.76123.5223
F31.76123.5223

picture of Magnesium fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Mg1 F3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 1.035      
2 F -0.517      
3 F -0.517      


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 -13.739 0.000 0.000
y 0.000 -13.739 0.000
z 0.000 0.000 -32.518
Traceless
 xyz
x 9.390 0.000 0.000
y 0.000 9.390 0.000
z 0.000 0.000 -18.780
Polar
3z2-r2-37.559
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 1.974 0.000 0.000
y 0.000 1.974 0.000
z 0.000 0.000 2.372


<r2> (average value of r2) Å2
<r2> 55.914
(<r2>)1/2 7.478