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

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-7771.470473
Energy at 298.15K-7771.480030
HF Energy-7771.470473
Nuclear repulsion energy831.213514
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/cc-pVDZ
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 441 401 3.10      
2 A1 244 222 0.59      
3 E 753 683 7.46      
3 E 753 683 7.46      
4 E 177 161 0.01      
4 E 177 161 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1272.3 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 1155.3 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/cc-pVDZ
ABC
0.04363 0.04363 0.02206

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.540
Br2 0.000 1.796 -0.036
Br3 1.556 -0.898 -0.036
Br4 -1.556 -0.898 -0.036

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.88641.88641.8864
Br21.88643.11143.1114
Br31.88643.11143.1114
Br41.88643.11143.1114

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 111.116 Br2 N1 Br4 111.116
Br3 N1 Br4 111.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.579      
2 Br 0.193      
3 Br 0.193      
4 Br 0.193      


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 -0.923 0.923
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.465 0.000 0.000
y 0.000 -56.465 0.000
z 0.000 0.000 -62.175
Traceless
 xyz
x 2.855 0.000 0.000
y 0.000 2.855 0.000
z 0.000 0.000 -5.710
Polar
3z2-r2-11.420
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 9.660 0.000 0.000
y 0.000 9.660 0.000
z 0.000 0.000 4.262


<r2> (average value of r2) Å2
<r2> 377.464
(<r2>)1/2 19.428