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

using model chemistry: ROMP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at ROMP2/cc-pVTZ
 hartrees
Energy at 0K-7772.620386
Energy at 298.15K 
HF Energy-7771.720493
Nuclear repulsion energy831.282640
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 ROMP2/cc-pVTZ
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 440 440        
2 A1 224 224        
3 E 609 609        
3 E 609 609        
4 E 156 156        
4 E 156 156        

Unscaled Zero Point Vibrational Energy (zpe) 1096.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1096.7 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 ROMP2/cc-pVTZ
ABC
0.04388 0.04388 0.02232

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.660
Br2 0.000 1.786 -0.044
Br3 1.547 -0.893 -0.044
Br4 -1.547 -0.893 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.91971.91971.9197
Br21.91973.09353.0935
Br31.91973.09353.0935
Br41.91973.09353.0935

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 107.357 Br2 N1 Br4 107.357
Br3 N1 Br4 107.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.308      
2 Br 0.103      
3 Br 0.103      
4 Br 0.103      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 374.989
(<r2>)1/2 19.365