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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-7768.078497
Energy at 298.15K-7768.087470
HF Energy-7768.078497
Nuclear repulsion energy776.745781
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 452 446 0.37      
2 A1 181 178 0.53      
3 E 475 469 141.68      
3 E 475 469 141.72      
4 E 124 122 1.17      
4 E 124 122 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 916.0 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 903.4 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
0.03831 0.03831 0.01949

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 0.705
Br2 0.000 1.911 -0.047
Br3 1.655 -0.956 -0.047
Br4 -1.655 -0.956 -0.047

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N12.05412.05412.0541
Br22.05413.31073.3107
Br32.05413.31073.3107
Br42.05413.31073.3107

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 107.389 Br2 N1 Br4 107.389
Br3 N1 Br4 107.389
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 -0.503      
2 Br 0.168      
3 Br 0.168      
4 Br 0.168      


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 -0.837 0.837
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.968 0.000 0.000
y 0.000 -57.968 0.000
z 0.000 0.000 -61.424
Traceless
 xyz
x 1.728 0.000 0.000
y 0.000 1.728 0.000
z 0.000 0.000 -3.456
Polar
3z2-r2-6.912
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 11.503 0.000 0.000
y 0.000 11.504 0.000
z 0.000 0.000 2.970


<r2> (average value of r2) Å2
<r2> 424.275
(<r2>)1/2 20.598