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

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-7776.074943
Energy at 298.15K-7776.084027
HF Energy-7776.074943
Nuclear repulsion energy810.835343
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 PBEPBEultrafine/aug-cc-pVTZ
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 461 456 1.29      
2 A1 199 197 0.36      
3 E 489 483 94.49      
3 E 489 483 94.49      
4 E 136 134 1.50      
4 E 136 134 1.50      

Unscaled Zero Point Vibrational Energy (zpe) 954.2 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 943.5 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
0.04169 0.04169 0.02117

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.644
Br2 0.000 1.834 -0.043
Br3 1.588 -0.917 -0.043
Br4 -1.588 -0.917 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.95851.95851.9585
Br21.95853.17643.1764
Br31.95853.17643.1764
Br41.95853.17643.1764

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 108.373 Br2 N1 Br4 108.373
Br3 N1 Br4 108.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.595      
2 Br 0.198      
3 Br 0.198      
4 Br 0.198      


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 -0.422 0.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.854 0.000 0.000
y 0.000 -57.854 0.000
z 0.000 0.000 -61.552
Traceless
 xyz
x 1.849 0.000 0.000
y 0.000 1.849 0.000
z 0.000 0.000 -3.698
Polar
3z2-r2-7.396
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 15.128 0.000 0.000
y 0.000 15.129 0.000
z 0.000 0.000 8.798


<r2> (average value of r2) Å2
<r2> 393.139
(<r2>)1/2 19.828