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

using model chemistry: HSEh1PBE/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 HSEh1PBE/3-21G
 hartrees
Energy at 0K-7738.688588
Energy at 298.15K-7738.697822
HF Energy-7738.688588
Nuclear repulsion energy796.879234
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 HSEh1PBE/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 438 421 1.11      
2 A1 214 206 0.58      
3 E 580 558 93.73      
3 E 580 558 93.77      
4 E 145 140 0.47      
4 E 145 140 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 1050.4 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 1011.9 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 HSEh1PBE/3-21G
ABC
0.04023 0.04023 0.02041

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.638
Br2 0.000 1.868 -0.043
Br3 1.617 -0.934 -0.043
Br4 -1.617 -0.934 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.98771.98771.9877
Br21.98773.23473.2347
Br31.98773.23473.2347
Br41.98773.23473.2347

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 108.913 Br2 N1 Br4 108.913
Br3 N1 Br4 108.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.540      
2 Br 0.180      
3 Br 0.180      
4 Br 0.180      


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 -1.060 1.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.945 0.000 0.000
y 0.000 -56.945 0.000
z 0.000 0.000 -61.230
Traceless
 xyz
x 2.143 0.000 0.000
y 0.000 2.143 0.000
z 0.000 0.000 -4.285
Polar
3z2-r2-8.570
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 9.644 0.000 0.000
y 0.000 9.644 0.000
z 0.000 0.000 2.361


<r2> (average value of r2) Å2
<r2> 405.717
(<r2>)1/2 20.142