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

using model chemistry: HF/6-31+G**

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 HF/6-31+G**
 hartrees
Energy at 0K-213.692777
Energy at 298.15K-213.692701
HF Energy-213.692777
Nuclear repulsion energy43.253015
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 HF/6-31+G**
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 748 676 0.00      
2 Σu 1625 1469 470.20      
3 Πu 375 339 203.79      
3 Πu 375 339 203.79      

Unscaled Zero Point Vibrational Energy (zpe) 1561.4 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 1411.8 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 HF/6-31+G**
B
0.23419

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31+G**

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 1.376
F3 0.000 0.000 -1.376

Atom - Atom Distances (Å)
  Be1 F2 F3
Be11.37641.3764
F21.37642.7528
F31.37642.7528

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 HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.633      
2 F -0.317      
3 F -0.317      


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 -12.527 0.000 0.000
y 0.000 -12.527 0.000
z 0.000 0.000 -21.931
Traceless
 xyz
x 4.702 0.000 0.000
y 0.000 4.702 0.000
z 0.000 0.000 -9.404
Polar
3z2-r2-18.807
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 1.148 0.000 0.000
y 0.000 1.148 0.000
z 0.000 0.000 1.774


<r2> (average value of r2) Å2
<r2> 43.881
(<r2>)1/2 6.624