return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-7778.038089
Energy at 298.15K-7778.047353
HF Energy-7778.038089
Nuclear repulsion energy822.319001
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 B1B95/6-311G*
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 454 435 0.65      
2 A1 217 208 0.38      
3 E 582 558 61.00      
3 E 581 557 60.93      
4 E 149 143 0.56      
4 E 149 143 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 1065.5 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 1021.3 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 B1B95/6-311G*
ABC
0.04284 0.04284 0.02174

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.619
Br2 0.000 1.810 -0.041
Br3 1.567 -0.905 -0.041
Br4 -1.567 -0.905 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.92651.92651.9265
Br21.92653.13453.1345
Br31.92653.13453.1345
Br41.92653.13453.1345

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 108.881 Br2 N1 Br4 108.881
Br3 N1 Br4 108.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.466      
2 Br 0.155      
3 Br 0.155      
4 Br 0.155      


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 -0.842 0.842
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.728 0.000 0.000
y 0.000 -56.728 0.000
z 0.000 0.000 -61.651
Traceless
 xyz
x 2.461 0.000 0.000
y 0.000 2.461 0.000
z 0.000 0.000 -4.923
Polar
3z2-r2-9.845
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 10.797 0.000 0.000
y 0.000 10.796 0.000
z 0.000 0.000 4.724


<r2> (average value of r2) Å2
<r2> 383.197
(<r2>)1/2 19.575