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

using model chemistry: PBEPBE/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 PBEPBE/STO-3G
 hartrees
Energy at 0K-7690.620861
Energy at 298.15K-7690.630001
HF Energy-7690.620861
Nuclear repulsion energy793.670578
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/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 547 500 5.21      
2 A1 213 195 0.00      
3 E 600 548 108.74      
3 E 600 548 108.73      
4 E 142 129 0.23      
4 E 142 129 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 1121.7 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 1024.8 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/STO-3G
ABC
0.04000 0.04000 0.02035

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.691
Br2 0.000 1.871 -0.046
Br3 1.620 -0.935 -0.046
Br4 -1.620 -0.935 -0.046

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N12.01052.01052.0105
Br22.01053.24013.2401
Br32.01053.24013.2401
Br42.01053.24013.2401

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 107.371 Br2 N1 Br4 107.371
Br3 N1 Br4 107.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.152      
2 Br 0.051      
3 Br 0.051      
4 Br 0.051      


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 -0.431 0.431
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.339 0.000 0.000
y 0.000 -53.339 0.000
z 0.000 0.000 -54.826
Traceless
 xyz
x 0.744 0.000 0.000
y 0.000 0.744 0.000
z 0.000 0.000 -1.487
Polar
3z2-r2-2.974
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 6.663 0.000 0.000
y 0.000 6.663 0.000
z 0.000 0.000 0.988


<r2> (average value of r2) Å2
<r2> 404.614
(<r2>)1/2 20.115