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

using model chemistry: B3PW91/6-31G(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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-399.788036
Energy at 298.15K-399.788478
HF Energy-399.788036
Nuclear repulsion energy77.937087
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 B3PW91/6-31G(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 586 564 0.00      
2 Σu 922 886 119.96      
3 Πu 178 172 118.04      
3 Πu 178 172 118.04      

Unscaled Zero Point Vibrational Energy (zpe) 932.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 896.3 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 B3PW91/6-31G(2df,p)
B
0.14627

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

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 1.742
F3 0.000 0.000 -1.742

Atom - Atom Distances (Å)
  Mg1 F2 F3
Mg11.74161.7416
F21.74163.4832
F31.74163.4832

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 B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 0.626      
2 F -0.313      
3 F -0.313      


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 -15.840 0.000 0.000
y 0.000 -15.840 0.000
z 0.000 0.000 -32.241
Traceless
 xyz
x 8.201 0.000 0.000
y 0.000 8.201 0.000
z 0.000 0.000 -16.402
Polar
3z2-r2-32.804
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 2.388 0.000 0.000
y 0.000 2.388 0.000
z 0.000 0.000 2.443


<r2> (average value of r2) Å2
<r2> 67.904
(<r2>)1/2 8.240