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

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-7769.856131
Energy at 298.15K 
HF Energy-7769.856131
Nuclear repulsion energy832.558629
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 wB97X-D/6-31+G**
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 478 455 1.67 17.62 0.05 0.10
2 A1 232 221 0.41 12.31 0.11 0.19
3 E 624 594 28.95 9.34 0.75 0.86
3 E 624 594 29.00 9.38 0.75 0.86
4 E 168 160 0.26 4.17 0.75 0.86
4 E 168 160 0.26 4.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1146.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 1091.8 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 wB97X-D/6-31+G**
ABC
0.04401 0.04401 0.02238

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.655
Br2 0.000 1.784 -0.044
Br3 1.545 -0.892 -0.044
Br4 -1.545 -0.892 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.91541.91541.9154
Br21.91543.08933.0893
Br31.91543.08933.0893
Br41.91543.08933.0893

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 107.498 Br2 N1 Br4 107.498
Br3 N1 Br4 107.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.295      
2 Br 0.098      
3 Br 0.098      
4 Br 0.098      


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 -0.715 0.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.098 0.000 0.000
y 0.000 -57.098 0.000
z 0.000 0.000 -62.025
Traceless
 xyz
x 2.463 0.000 0.000
y 0.000 2.463 0.000
z 0.000 0.000 -4.927
Polar
3z2-r2-9.854
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 11.821 0.000 0.000
y 0.000 11.825 -0.000
z 0.000 -0.000 6.908


<r2> (average value of r2) Å2
<r2> 373.925
(<r2>)1/2 19.337