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

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-7687.659587
Energy at 298.15K-7687.669177
HF Energy-7687.659587
Nuclear repulsion energy826.085886
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 HF/STO-3G
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 516 421 1.71      
2 A1 265 217 0.14      
3 E 912 744 41.29      
3 E 912 744 41.29      
4 E 187 153 0.26      
4 E 187 153 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 1489.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 1216.1 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 HF/STO-3G
ABC
0.04314 0.04314 0.02184

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.566
Br2 0.000 1.806 -0.038
Br3 1.564 -0.903 -0.038
Br4 -1.564 -0.903 -0.038

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.90391.90391.9039
Br21.90393.12763.1276
Br31.90393.12763.1276
Br41.90393.12763.1276

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 110.440 Br2 N1 Br4 110.440
Br3 N1 Br4 110.440
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.295      
2 Br 0.098      
3 Br 0.098      
4 Br 0.098      


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 -0.793 0.793
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.699 0.000 0.000
y 0.000 -53.699 0.000
z 0.000 0.000 -55.508
Traceless
 xyz
x 0.904 0.000 0.000
y 0.000 0.904 0.000
z 0.000 0.000 -1.809
Polar
3z2-r2-3.617
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 5.607 0.000 0.000
y 0.000 5.607 0.000
z 0.000 0.000 0.600


<r2> (average value of r2) Å2
<r2> 378.668
(<r2>)1/2 19.459