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

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-7769.010300
Energy at 298.15K-7769.019493
HF Energy-7769.010300
Nuclear repulsion energy824.673004
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 PBEPBE/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 466 461 0.84      
2 A1 214 211 0.33      
3 E 527 522 78.07      
3 E 527 522 78.08      
4 E 147 145 0.85      
4 E 147 145 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 1013.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 1003.4 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 PBEPBE/6-31G(2df,p)
ABC
0.04314 0.04314 0.02191

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.641
Br2 0.000 1.803 -0.043
Br3 1.561 -0.901 -0.043
Br4 -1.561 -0.901 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.92771.92771.9277
Br21.92773.12203.1220
Br31.92773.12203.1220
Br41.92773.12203.1220

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 108.153 Br2 N1 Br4 108.153
Br3 N1 Br4 108.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.576      
2 Br 0.192      
3 Br 0.192      
4 Br 0.192      


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 -0.468 0.468
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.713 0.000 0.000
y 0.000 -56.713 0.000
z 0.000 0.000 -60.303
Traceless
 xyz
x 1.795 0.000 0.000
y 0.000 1.795 0.000
z 0.000 0.000 -3.590
Polar
3z2-r2-7.181
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 12.899 0.000 0.000
y 0.000 12.898 0.000
z 0.000 0.000 7.137


<r2> (average value of r2) Å2
<r2> 380.383
(<r2>)1/2 19.503