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

using model chemistry: B3PW91/TZVP

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/TZVP
 hartrees
Energy at 0K-7777.130160
Energy at 298.15K-7777.139413
HF Energy-7777.130160
Nuclear repulsion energy818.666328
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/TZVP
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 459 443 1.01      
2 A1 215 207 0.45      
3 E 567 547 69.42      
3 E 567 547 69.43      
4 E 147 142 0.70      
4 E 147 142 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 1051.4 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 1013.9 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/TZVP
ABC
0.04246 0.04246 0.02154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.620
Br2 0.000 1.818 -0.041
Br3 1.574 -0.909 -0.041
Br4 -1.574 -0.909 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.93441.93441.9344
Br21.93443.14883.1488
Br31.93443.14883.1488
Br41.93443.14883.1488

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 108.957 Br2 N1 Br4 108.957
Br3 N1 Br4 108.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.197      
2 Br 0.066      
3 Br 0.066      
4 Br 0.066      


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 -0.737 0.737
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.898 0.000 0.000
y 0.000 -56.898 0.000
z 0.000 0.000 -61.678
Traceless
 xyz
x 2.390 0.000 0.000
y 0.000 2.390 0.000
z 0.000 0.000 -4.780
Polar
3z2-r2-9.560
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 11.466 0.000 0.000
y 0.000 11.465 0.000
z 0.000 0.000 5.056


<r2> (average value of r2) Å2
<r2> 386.432
(<r2>)1/2 19.658