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

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-7776.754532
Energy at 298.15K-7776.763657
HF Energy-7776.754532
Nuclear repulsion energy809.362416
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/6-311G*
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 458 441 0.33      
2 A1 204 196 0.41      
3 E 513 494 97.80      
3 E 513 494 97.77      
4 E 139 134 1.30      
4 E 139 134 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 982.8 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 946.6 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/6-311G*
ABC
0.04152 0.04152 0.02108

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.637
Br2 0.000 1.838 -0.042
Br3 1.592 -0.919 -0.042
Br4 -1.592 -0.919 -0.042

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.95951.95951.9595
Br21.95953.18353.1835
Br31.95953.18353.1835
Br41.95953.18353.1835

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 108.647 Br2 N1 Br4 108.647
Br3 N1 Br4 108.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.421      
2 Br 0.140      
3 Br 0.140      
4 Br 0.140      


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 -0.751 0.751
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 11.531 0.000 0.000
y 0.000 11.530 0.001
z 0.000 0.001 4.768


<r2> (average value of r2) Å2
<r2> 394.348
(<r2>)1/2 19.858