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All results from a given calculation for BBr3 (Boron tribromide)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-42.300772
Energy at 298.15K-42.309081
HF Energy-42.168151
Nuclear repulsion energy39.854877
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 MP2/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 263 256 0.00      
2 A2" 381 372 0.91      
3 E' 789 770 330.34      
3 E' 789 770 330.34      
4 E' 156 152 0.08      
4 E' 156 152 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 1266.3 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 1235.9 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 MP2/CEP-121G
ABC
0.03694 0.03694 0.01847

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.000
Br2 0.000 1.963 0.000
Br3 1.700 -0.982 0.000
Br4 -1.700 -0.982 0.000

Atom - Atom Distances (Å)
  B1 Br2 Br3 Br4
B11.96341.96341.9634
Br21.96343.40063.4006
Br31.96343.40063.4006
Br41.96343.40063.4006

picture of Boron tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 B1 Br3 120.000 Br2 B1 Br4 120.000
Br3 B1 Br4 120.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability