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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-7770.298420
Energy at 298.15K-7770.307482
HF Energy-7770.298420
Nuclear repulsion energy810.749235
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 BLYP/6-31G(2df,p)
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 453 450 0.75      
2 A1 201 200 0.34      
3 E 477 474 87.51      
3 E 476 474 87.38      
4 E 139 138 1.38      
4 E 139 138 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 942.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 937.3 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 BLYP/6-31G(2df,p)
ABC
0.04169 0.04169 0.02117

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.648
Br2 0.000 1.834 -0.043
Br3 1.588 -0.917 -0.043
Br4 -1.588 -0.917 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.95971.95971.9597
Br21.95973.17623.1762
Br31.95973.17623.1762
Br41.95973.17623.1762

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 108.267 Br2 N1 Br4 108.267
Br3 N1 Br4 108.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.514      
2 Br 0.171      
3 Br 0.171      
4 Br 0.171      


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 -0.449 0.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.987 0.000 0.000
y 0.000 -56.987 0.000
z 0.000 0.000 -60.352
Traceless
 xyz
x 1.682 0.000 0.000
y 0.000 1.682 0.000
z 0.000 0.000 -3.365
Polar
3z2-r2-6.729
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 13.331 0.000 0.000
y 0.000 13.329 0.000
z 0.000 0.000 7.133


<r2> (average value of r2) Å2
<r2> 392.521
(<r2>)1/2 19.812