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

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-7769.791036
Energy at 298.15K-7769.800215
HF Energy-7769.791036
Nuclear repulsion energy795.669848
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 mPW1PW91/6-31G
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 448 424 0.89      
2 A1 207 196 0.51      
3 E 550 521 81.52      
3 E 550 520 81.54      
4 E 142 134 0.44      
4 E 142 134 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 1019.2 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 964.7 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 mPW1PW91/6-31G
ABC
0.04020 0.04020 0.02045

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.688
Br2 0.000 1.866 -0.046
Br3 1.616 -0.933 -0.046
Br4 -1.616 -0.933 -0.046

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N12.00522.00522.0052
Br22.00523.23213.2321
Br32.00523.23213.2321
Br42.00523.23213.2321

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 107.403 Br2 N1 Br4 107.403
Br3 N1 Br4 107.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.628      
2 Br 0.209      
3 Br 0.209      
4 Br 0.209      


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 -1.107 1.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.620 0.000 0.000
y 0.000 -57.620 0.000
z 0.000 0.000 -61.864
Traceless
 xyz
x 2.122 0.000 0.000
y 0.000 2.122 0.000
z 0.000 0.000 -4.245
Polar
3z2-r2-8.490
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 10.267 0.000 0.000
y 0.000 10.267 0.000
z 0.000 0.000 2.874


<r2> (average value of r2) Å2
<r2> 406.026
(<r2>)1/2 20.150