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: B3LYP/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-7777.372335
Energy at 298.15K 
HF Energy-7777.372335
Nuclear repulsion energy817.573721
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 B3LYP/aug-cc-pVQZ
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 447 433 1.37 12.24 0.05 0.10
2 A1 214 208 0.32 18.74 0.09 0.17
3 E 551 534 54.44 6.21 0.75 0.86
3 E 551 534 54.44 6.20 0.75 0.86
4 E 148 144 0.65 4.48 0.75 0.86
4 E 148 144 0.65 4.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1029.6 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 997.6 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 B3LYP/aug-cc-pVQZ
ABC
0.04235 0.04235 0.02149

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.620
Br2 0.000 1.820 -0.041
Br3 1.577 -0.910 -0.041
Br4 -1.577 -0.910 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.93691.93691.9369
Br21.93693.15313.1531
Br31.93693.15313.1531
Br41.93693.15313.1531

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 108.967 Br2 N1 Br4 108.967
Br3 N1 Br4 108.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.646      
2 Br 0.215      
3 Br 0.215      
4 Br 0.215      


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 -0.494 0.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.675 0.000 0.000
y 0.000 -57.675 0.000
z 0.000 0.000 -61.767
Traceless
 xyz
x 2.046 0.000 0.000
y 0.000 2.046 0.000
z 0.000 0.000 -4.093
Polar
3z2-r2-8.185
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 14.317 0.000 0.000
y 0.000 14.317 0.000
z 0.000 0.000 8.634


<r2> (average value of r2) Å2
<r2> 387.717
(<r2>)1/2 19.691