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: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-7770.459698
Energy at 298.15K-7770.469226
HF Energy-7770.459698
Nuclear repulsion energy843.160601
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 M06-2X/6-31G(2df,p)
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 460 438 1.64      
2 A1 248 237 0.33      
3 E 701 668 19.70      
3 E 701 667 19.84      
4 E 176 167 0.06      
4 E 176 167 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 1230.5 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 1171.9 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 M06-2X/6-31G(2df,p)
ABC
0.04500 0.04500 0.02282

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.585
Br2 0.000 1.767 -0.039
Br3 1.530 -0.883 -0.039
Br4 -1.530 -0.883 -0.039

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.87361.87361.8736
Br21.87363.05983.0598
Br31.87363.05983.0598
Br41.87363.05983.0598

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 109.485 Br2 N1 Br4 109.485
Br3 N1 Br4 109.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.690      
2 Br 0.230      
3 Br 0.230      
4 Br 0.230      


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 -0.550 0.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.704 0.000 0.000
y 0.000 -56.704 0.000
z 0.000 0.000 -61.047
Traceless
 xyz
x 2.171 0.000 0.000
y 0.000 2.171 0.000
z 0.000 0.000 -4.343
Polar
3z2-r2-8.686
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 11.498 0.000 0.000
y 0.000 11.509 0.003
z 0.000 0.003 6.775


<r2> (average value of r2) Å2
<r2> 366.566
(<r2>)1/2 19.146