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

using model chemistry: PBEPBEultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-7775.840864
Energy at 298.15K 
HF Energy-7775.840864
Nuclear repulsion energy810.838769
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 PBEPBEultrafine/6-311+G(3df,2p)
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 462 462 1.34 6.28 0.02 0.05
2 A1 200 200 0.37 23.09 0.10 0.18
3 E 488 488 95.25 2.36 0.75 0.86
3 E 488 488 95.25 2.36 0.75 0.86
4 E 136 136 1.54 5.32 0.75 0.86
4 E 136 136 1.54 5.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 954.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 954.1 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
0.04169 0.04169 0.02117

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.643
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
N11.95821.95821.9582
Br21.95823.17653.1765
Br31.95823.17653.1765
Br41.95823.17653.1765

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 108.405 Br2 N1 Br4 108.405
Br3 N1 Br4 108.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.458      
2 Br 0.153      
3 Br 0.153      
4 Br 0.153      


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 -0.432 0.432
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.774 0.000 0.000
y 0.000 -57.774 0.000
z 0.000 0.000 -61.596
Traceless
 xyz
x 1.911 0.000 0.000
y 0.000 1.911 0.000
z 0.000 0.000 -3.822
Polar
3z2-r2-7.644
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 14.874 0.000 0.000
y 0.000 14.875 0.000
z 0.000 0.000 8.558


<r2> (average value of r2) Å2
<r2> 393.137
(<r2>)1/2 19.828