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

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-7763.978139
Energy at 298.15K-7763.987707
HF Energy-7763.978139
Nuclear repulsion energy834.782258
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/6-31G**
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 455 411 3.07      
2 A1 247 223 0.43      
3 E 740 668 6.70      
3 E 740 668 6.70      
4 E 182 164 0.01      
4 E 182 164 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1272.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 1148.7 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/6-31G**
ABC
0.04406 0.04406 0.02231

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.565
Br2 0.000 1.786 -0.038
Br3 1.547 -0.893 -0.038
Br4 -1.547 -0.893 -0.038

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.88541.88541.8854
Br21.88543.09433.0943
Br31.88543.09433.0943
Br41.88543.09433.0943

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 110.288 Br2 N1 Br4 110.288
Br3 N1 Br4 110.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.497      
2 Br 0.166      
3 Br 0.166      
4 Br 0.166      


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 -0.860 0.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.417 0.000 0.000
y 0.000 -56.417 0.000
z 0.000 0.000 -61.958
Traceless
 xyz
x 2.770 0.000 0.000
y 0.000 2.770 0.000
z 0.000 0.000 -5.541
Polar
3z2-r2-11.082
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 10.247 0.000 0.000
y 0.000 10.247 0.000
z 0.000 0.000 5.194


<r2> (average value of r2) Å2
<r2> 373.886
(<r2>)1/2 19.336