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

using model chemistry: LSDA/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 LSDA/aug-cc-pVTZ
 hartrees
Energy at 0K-7768.578987
Energy at 298.15K-7768.588231
HF Energy-7768.578987
Nuclear repulsion energy830.380617
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 LSDA/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 473 468 1.64      
2 A1 214 212 0.40      
3 E 555 550 82.12      
3 E 555 550 82.13      
4 E 145 144 0.79      
4 E 145 144 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 1043.9 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 1034.1 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 LSDA/aug-cc-pVTZ
ABC
0.04372 0.04372 0.02221

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.631
Br2 0.000 1.791 -0.042
Br3 1.551 -0.895 -0.042
Br4 -1.551 -0.895 -0.042

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.91281.91281.9128
Br21.91283.10143.1014
Br31.91283.10143.1014
Br41.91283.10143.1014

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 108.334 Br2 N1 Br4 108.334
Br3 N1 Br4 108.334
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.756      
2 Br 0.252      
3 Br 0.252      
4 Br 0.252      


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 -0.481 0.481
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.397 0.000 0.000
y 0.000 -57.397 0.000
z 0.000 0.000 -61.479
Traceless
 xyz
x 2.041 0.000 0.000
y 0.000 2.041 0.000
z 0.000 0.000 -4.082
Polar
3z2-r2-8.164
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 14.373 0.000 0.000
y 0.000 14.375 -0.001
z 0.000 -0.001 8.655


<r2> (average value of r2) Å2
<r2> 376.331
(<r2>)1/2 19.399