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All results from a given calculation for NBr3 (Nitrogen Tribromide)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-7773.193406
Energy at 298.15K-7773.187376
HF Energy-7764.231981
Nuclear repulsion energy838.347272
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 CBS-Q
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 448 448 3.55      
2 A1 249 249 0.58      
3 E 776 776 5.25      
3 E 776 776 5.25      
4 E 184 184 0.00      
4 E 184 184 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1308.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1308.4 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 CBS-Q
ABC
0.04321 0.04321 0.02199

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.570
Br2 0.000 1.765 -0.038
Br3 1.528 -0.882 -0.038
Br4 -1.528 -0.882 -0.038

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.86681.86681.8668
Br21.86683.05693.0569
Br31.86683.05693.0569
Br41.86683.05693.0569

picture of Nitrogen Tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 N1 Br3 109.921 Br2 N1 Br4 109.921
Br3 N1 Br4 109.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability