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

using model chemistry: B3LYP/3-21G*

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/3-21G*
 hartrees
Energy at 0K-7740.478911
Energy at 298.15K-7740.488142
HF Energy-7740.478911
Nuclear repulsion energy812.742866
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/3-21G*
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 473 455 0.01      
2 A1 206 198 0.47      
3 E 569 548 67.22      
3 E 569 548 67.20      
4 E 144 139 0.59      
4 E 144 139 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 1053.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1013.0 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/3-21G*
ABC
0.04198 0.04198 0.02137

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.690
Br2 0.000 1.825 -0.046
Br3 1.581 -0.913 -0.046
Br4 -1.581 -0.913 -0.046

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.96811.96811.9681
Br21.96813.16163.1616
Br31.96813.16163.1616
Br41.96813.16163.1616

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 106.874 Br2 N1 Br4 106.874
Br3 N1 Br4 106.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.285      
2 Br 0.095      
3 Br 0.095      
4 Br 0.095      


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 -0.853 0.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.727 0.000 0.000
y 0.000 -55.727 0.000
z 0.000 0.000 -60.310
Traceless
 xyz
x 2.291 0.000 0.000
y 0.000 2.291 0.000
z 0.000 0.000 -4.582
Polar
3z2-r2-9.164
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 10.606 0.000 0.000
y 0.000 10.606 0.000
z 0.000 0.000 4.682


<r2> (average value of r2) Å2
<r2> 389.154
(<r2>)1/2 19.727