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 BeBr2 (Beryllium bromide)

using model chemistry: TPSSh/cc-pVDZ

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 TPSSh/cc-pVDZ
 hartrees
Energy at 0K-5162.976993
Energy at 298.15K 
HF Energy-5162.976993
Nuclear repulsion energy240.926213
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 TPSSh/cc-pVDZ
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 240 233 0.00 4.08 0.18 0.31
2 Σu 1003 976 412.74 0.00 0.00 0.00
3 Πu 200 195 24.42 0.00 0.00 0.00
3 Πu 200 195 24.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 821.6 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 798.9 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 TPSSh/cc-pVDZ
B
0.02779

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
Br2 0.000 0.000 1.960
Br3 0.000 0.000 -1.960

Atom - Atom Distances (Å)
  Be1 Br2 Br3
Be11.96031.9603
Br21.96033.9206
Br31.96033.9206

picture of Beryllium bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 Be1 Br3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.149      
2 Br -0.075      
3 Br -0.075      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.767 0.000 0.000
y 0.000 4.767 0.000
z 0.000 0.000 9.899


<r2> (average value of r2) Å2
<r2> 295.306
(<r2>)1/2 17.184