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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-93.062385
Energy at 298.15K-93.071714
HF Energy-93.062385
Nuclear repulsion energy63.856769
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 HF/LANL2DZ
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 322 289 2.48      
2 A1 224 202 2.63      
3 E 728 655 11.38      
3 E 728 655 11.38      
4 E 163 147 0.00      
4 E 163 147 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1163.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 1047.4 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 HF/LANL2DZ
ABC
0.04000 0.04000 0.02016

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.476
Br2 0.000 1.879 -0.032
Br3 1.628 -0.940 -0.032
Br4 -1.628 -0.940 -0.032

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.94671.94671.9467
Br21.94673.25503.2550
Br31.94673.25503.2550
Br41.94673.25503.2550

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 113.443 Br2 N1 Br4 113.443
Br3 N1 Br4 113.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.777      
2 Br 0.259      
3 Br 0.259      
4 Br 0.259      


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 -1.497 1.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.739 0.000 0.000
y 0.000 -47.739 0.000
z 0.000 0.000 -53.816
Traceless
 xyz
x 3.039 0.000 0.000
y 0.000 3.039 0.000
z 0.000 0.000 -6.077
Polar
3z2-r2-12.154
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.855 0.000 0.000
y 0.000 9.855 0.000
z 0.000 0.000 1.044


<r2> (average value of r2) Å2
<r2> 106.857
(<r2>)1/2 10.337