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All results from a given calculation for BeBr2 (Beryllium bromide)

using model chemistry: QCISD(T)=FULL/cc-pVQZ

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 QCISD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-5160.572647
Energy at 298.15K 
HF Energy-5159.724689
Nuclear repulsion energy244.509276
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 QCISD(T)=FULL/cc-pVQZ
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 250 250        
2 Σu 1040 1040        
3 Πu 211 211        
3 Πu 211 211        

Unscaled Zero Point Vibrational Energy (zpe) 856.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 856.0 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 QCISD(T)=FULL/cc-pVQZ
B
0.02863

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVQZ

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 1.932
Br3 0.000 0.000 -1.932

Atom - Atom Distances (Å)
  Be1 Br2 Br3
Be11.93151.9315
Br21.93153.8631
Br31.93153.8631

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