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All results from a given calculation for BeF2 (Beryllium fluoride)

using model chemistry: PBEPBE/Def2TZVPP

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 PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-214.459986
Energy at 298.15K-214.459812
HF Energy-214.459986
Nuclear repulsion energy42.809103
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 PBEPBE/Def2TZVPP
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 701 692 0.00      
2 Σu 1522 1503 345.87      
3 Πu 338 334 140.40      
3 Πu 338 334 140.40      

Unscaled Zero Point Vibrational Energy (zpe) 1449.5 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 1432.0 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 PBEPBE/Def2TZVPP
B
0.22941

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
F2 0.000 0.000 1.388
F3 0.000 0.000 -1.388

Atom - Atom Distances (Å)
  Be1 F2 F3
Be11.38791.3879
F21.38792.7758
F31.38792.7758

picture of Beryllium fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 Be1 F3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.506      
2 F -0.253      
3 F -0.253      


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 -13.173 0.000 0.000
y 0.000 -13.173 0.000
z 0.000 0.000 -20.601
Traceless
 xyz
x 3.714 0.000 0.000
y 0.000 3.714 0.000
z 0.000 0.000 -7.428
Polar
3z2-r2-14.856
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 1.657 0.000 0.000
y 0.000 1.657 0.000
z 0.000 0.000 2.431


<r2> (average value of r2) Å2
<r2> 44.584
(<r2>)1/2 6.677