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

using model chemistry: PBE1PBE/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 PBE1PBE/TZVP
 hartrees
Energy at 0K-214.450003
Energy at 298.15K-214.449987
HF Energy-214.450003
Nuclear repulsion energy43.145866
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 PBE1PBE/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 726 697 0.00      
2 Σu 1621 1556 407.92      
3 Πu 407 390 162.13      
3 Πu 407 390 162.13      

Unscaled Zero Point Vibrational Energy (zpe) 1580.6 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 1516.7 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 PBE1PBE/TZVP
B
0.23303

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

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 1.380
F3 0.000 0.000 -1.380

Atom - Atom Distances (Å)
  Be1 F2 F3
Be11.37981.3798
F21.37982.7596
F31.37982.7596

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 PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.770      
2 F -0.385      
3 F -0.385      


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 -12.881 0.000 0.000
y 0.000 -12.881 0.000
z 0.000 0.000 -21.766
Traceless
 xyz
x 4.442 0.000 0.000
y 0.000 4.442 0.000
z 0.000 0.000 -8.885
Polar
3z2-r2-17.769
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 1.074 0.000 0.000
y 0.000 1.074 0.000
z 0.000 0.000 2.213


<r2> (average value of r2) Å2
<r2> 44.164
(<r2>)1/2 6.646