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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-7769.760979
Energy at 298.15K-7769.770189
HF Energy-7769.760979
Nuclear repulsion energy812.208656
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 B3LYP/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 469 451 0.43      
2 A1 214 205 0.40      
3 E 530 510 66.76      
3 E 530 510 66.73      
4 E 151 146 0.89      
4 E 151 146 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 1023.3 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 983.2 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 B3LYP/6-31G**
ABC
0.04188 0.04188 0.02129

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.667
Br2 0.000 1.829 -0.044
Br3 1.584 -0.914 -0.044
Br4 -1.584 -0.914 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.96231.96231.9623
Br21.96233.16733.1673
Br31.96233.16733.1673
Br41.96233.16733.1673

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 107.618 Br2 N1 Br4 107.618
Br3 N1 Br4 107.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.330      
2 Br 0.110      
3 Br 0.110      
4 Br 0.110      


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 -0.724 0.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.343 0.000 0.000
y 0.000 -56.343 0.000
z 0.000 0.000 -60.862
Traceless
 xyz
x 2.259 0.000 0.000
y 0.000 2.259 0.000
z 0.000 0.000 -4.519
Polar
3z2-r2-9.037
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 11.458 0.000 0.000
y 0.000 11.457 0.000
z 0.000 0.000 5.505


<r2> (average value of r2) Å2
<r2> 390.573
(<r2>)1/2 19.763