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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-7777.020451
Energy at 298.15K-7777.029669
HF Energy-7777.020451
Nuclear repulsion energy815.733716
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 B3PW91/6-311G*
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 456 439 0.55      
2 A1 214 206 0.40      
3 E 552 531 75.98      
3 E 552 531 75.99      
4 E 147 142 0.88      
4 E 147 142 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 1033.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 995.1 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 B3PW91/6-311G*
ABC
0.04216 0.04216 0.02139

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.622
Br2 0.000 1.825 -0.041
Br3 1.580 -0.912 -0.041
Br4 -1.580 -0.912 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.94141.94141.9414
Br21.94143.16013.1601
Br31.94143.16013.1601
Br41.94143.16013.1601

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 108.952 Br2 N1 Br4 108.952
Br3 N1 Br4 108.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.452      
2 Br 0.151      
3 Br 0.151      
4 Br 0.151      


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 -0.815 0.815
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.861 0.000 0.000
y 0.000 -56.861 0.000
z 0.000 0.000 -61.678
Traceless
 xyz
x 2.409 0.000 0.000
y 0.000 2.409 0.000
z 0.000 0.000 -4.818
Polar
3z2-r2-9.635
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 11.096 0.000 0.000
y 0.000 11.095 0.000
z 0.000 0.000 4.741


<r2> (average value of r2) Å2
<r2> 388.933
(<r2>)1/2 19.721