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

using model chemistry: wB97X-D/6-311G**

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 wB97X-D/6-311G**
 hartrees
Energy at 0K-214.596925
Energy at 298.15K 
HF Energy-214.596925
Nuclear repulsion energy42.951091
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 wB97X-D/6-311G**
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 700 669 0.00      
2 Σu 1532 1466 340.35      
3 Πu 342 327 166.15      
3 Πu 342 327 166.15      

Unscaled Zero Point Vibrational Energy (zpe) 1457.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1394.3 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 wB97X-D/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

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 1.384
F3 0.000 0.000 -1.384

Atom - Atom Distances (Å)
  Be1 F2 F3
Be11.38441.3844
F21.38442.7688
F31.38442.7688

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 wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.727      
2 F -0.363      
3 F -0.363      


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 -12.677 0.000 0.000
y 0.000 -12.677 0.000
z 0.000 0.000 -21.113
Traceless
 xyz
x 4.218 0.000 0.000
y 0.000 4.218 0.000
z 0.000 0.000 -8.435
Polar
3z2-r2-16.871
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 1.251 0.000 0.000
y 0.000 1.251 0.000
z 0.000 0.000 1.939


<r2> (average value of r2) Å2
<r2> 44.255
(<r2>)1/2 6.652