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

using model chemistry: HF/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-7764.530358
Energy at 298.15K-7764.539989
HF Energy-7764.530358
Nuclear repulsion energy848.998694
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(2df,p)
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 438 397 3.32      
2 A1 253 229 0.53      
3 E 809 733 0.98      
3 E 809 733 0.98      
4 E 186 169 0.01      
4 E 186 169 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1341.2 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 1214.4 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/6-31G(2df,p)
ABC
0.04547 0.04547 0.02297

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.506
Br2 0.000 1.761 -0.034
Br3 1.525 -0.880 -0.034
Br4 -1.525 -0.880 -0.034

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.84131.84131.8413
Br21.84133.04933.0493
Br31.84133.04933.0493
Br41.84133.04933.0493

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 111.796 Br2 N1 Br4 111.796
Br3 N1 Br4 111.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.943      
2 Br 0.314      
3 Br 0.314      
4 Br 0.314      


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 -0.552 0.552
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.829 0.000 0.000
y 0.000 -56.829 0.000
z 0.000 0.000 -61.548
Traceless
 xyz
x 2.360 0.000 0.000
y 0.000 2.360 0.000
z 0.000 0.000 -4.720
Polar
3z2-r2-9.439
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 11.020 0.000 0.000
y 0.000 11.020 0.000
z 0.000 0.000 6.677


<r2> (average value of r2) Å2
<r2> 363.824
(<r2>)1/2 19.074