return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: LSDA/TZVP

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 LSDA/TZVP
 hartrees
Energy at 0K-398.350300
Energy at 298.15K-398.350550
HF Energy-398.350300
Nuclear repulsion energy77.300760
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 LSDA/TZVP
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 542 536 0.00      
2 Σu 849 839 114.06      
3 Πu 132 131 143.82      
3 Πu 132 131 143.82      

Unscaled Zero Point Vibrational Energy (zpe) 828.0 cm-1
Scaled (by 0.9884) Zero Point Vibrational Energy (zpe) 818.4 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 LSDA/TZVP
B
0.14389

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

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 1.756
F3 0.000 0.000 -1.756

Atom - Atom Distances (Å)
  Mg1 F2 F3
Mg11.75591.7559
F21.75593.5118
F31.75593.5118

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 LSDA/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 1.442      
2 F -0.721      
3 F -0.721      


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 -15.756 0.000 0.000
y 0.000 -15.756 0.000
z 0.000 0.000 -36.009
Traceless
 xyz
x 10.126 0.000 0.000
y 0.000 10.126 0.000
z 0.000 0.000 -20.253
Polar
3z2-r2-40.506
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 1.315 0.000 0.000
y 0.000 1.315 0.000
z 0.000 0.000 3.070


<r2> (average value of r2) Å2
<r2> 69.556
(<r2>)1/2 8.340