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

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-7768.502659
Energy at 298.15K-7768.511740
HF Energy-7768.502659
Nuclear repulsion energy806.723861
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 PBEPBE/6-31G**
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 476 469 0.38      
2 A1 201 198 0.42      
3 E 478 471 106.46      
3 E 478 471 106.46      
4 E 141 139 1.75      
4 E 141 139 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 956.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 943.2 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 PBEPBE/6-31G**
ABC
0.04133 0.04133 0.02102

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.680
Br2 0.000 1.840 -0.045
Br3 1.594 -0.920 -0.045
Br4 -1.594 -0.920 -0.045

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.97801.97801.9780
Br21.97803.18763.1876
Br31.97803.18763.1876
Br41.97803.18763.1876

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 107.366 Br2 N1 Br4 107.366
Br3 N1 Br4 107.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.297      
2 Br 0.099      
3 Br 0.099      
4 Br 0.099      


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 -0.635 0.635
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.493 0.000 0.000
y 0.000 -56.493 0.000
z 0.000 0.000 -60.588
Traceless
 xyz
x 2.048 0.000 0.000
y 0.000 2.048 0.000
z 0.000 0.000 -4.095
Polar
3z2-r2-8.190
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 12.085 0.000 0.000
y 0.000 12.084 0.000
z 0.000 0.000 5.619


<r2> (average value of r2) Å2
<r2> 395.215
(<r2>)1/2 19.880