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

using model chemistry: B3PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-7777.057400
Energy at 298.15K 
HF Energy-7777.057400
Nuclear repulsion energy819.527745
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 B3PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 474 458 1.26 11.12 0.03 0.06
2 A1 217 210 0.35 17.75 0.10 0.18
3 E 563 543 60.42 5.14 0.75 0.86
3 E 563 543 60.42 5.14 0.75 0.86
4 E 150 145 0.65 4.60 0.75 0.86
4 E 150 145 0.65 4.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1059.0 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 1021.5 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 B3PW91/aug-cc-pVDZ
ABC
0.04260 0.04260 0.02164

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.642
Br2 0.000 1.814 -0.043
Br3 1.571 -0.907 -0.043
Br4 -1.571 -0.907 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.93901.93901.9390
Br21.93903.14213.1421
Br31.93903.14213.1421
Br41.93903.14213.1421

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 108.240 Br2 N1 Br4 108.240
Br3 N1 Br4 108.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.867      
2 Br 0.289      
3 Br 0.289      
4 Br 0.289      


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 -0.483 0.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.259 0.000 0.000
y 0.000 -57.259 0.000
z 0.000 0.000 -61.522
Traceless
 xyz
x 2.131 0.000 0.000
y 0.000 2.131 0.000
z 0.000 0.000 -4.263
Polar
3z2-r2-8.525
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 13.714 0.000 0.000
y 0.000 13.714 0.000
z 0.000 0.000 8.010


<r2> (average value of r2) Å2
<r2> 385.266
(<r2>)1/2 19.628