return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-7768.265982
Energy at 298.15K-7768.275188
HF Energy-7768.082576
Nuclear repulsion energy813.026216
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 B2PLYP/6-31G*
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 457 434 0.15      
2 A1 214 203 0.42      
3 E 538 511 48.06      
3 E 538 511 48.04      
4 E 153 145 0.62      
4 E 153 145 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 1026.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 974.2 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 B2PLYP/6-31G*
ABC
0.04200 0.04200 0.02138

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.687
Br2 0.000 1.825 -0.046
Br3 1.580 -0.912 -0.046
Br4 -1.580 -0.912 -0.046

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.96651.96651.9665
Br21.96653.16093.1609
Br31.96653.16093.1609
Br41.96653.16093.1609

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 106.964 Br2 N1 Br4 106.964
Br3 N1 Br4 106.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.325      
2 Br 0.108      
3 Br 0.108      
4 Br 0.108      


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 -0.728 0.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.779 0.000 0.000
y 0.000 -56.779 0.000
z 0.000 0.000 -61.225
Traceless
 xyz
x 2.223 0.000 0.000
y 0.000 2.223 0.000
z 0.000 0.000 -4.446
Polar
3z2-r2-8.892
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 11.075 0.000 0.000
y 0.000 11.075 0.000
z 0.000 0.000 5.500


<r2> (average value of r2) Å2
<r2> 389.607
(<r2>)1/2 19.738