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

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-7744.323683
Energy at 298.15K 
HF Energy-7744.323683
Nuclear repulsion energy801.595827
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 B97D3/3-21G*
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 478 478 0.02 5.32 0.00 0.00
2 A1 190 190 0.50 19.45 0.14 0.24
3 E 502 502 111.10 2.19 0.75 0.86
3 E 502 502 111.11 2.19 0.75 0.86
4 E 134 134 1.40 5.75 0.75 0.86
4 E 134 134 1.40 5.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 969.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 969.6 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 B97D3/3-21G*
ABC
0.04083 0.04083 0.02079

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.699
Br2 0.000 1.851 -0.047
Br3 1.603 -0.925 -0.047
Br4 -1.603 -0.925 -0.047

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.99531.99531.9953
Br21.99533.20563.2056
Br31.99533.20563.2056
Br41.99533.20563.2056

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 106.889 Br2 N1 Br4 106.889
Br3 N1 Br4 106.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.249      
2 Br 0.083      
3 Br 0.083      
4 Br 0.083      


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 -0.707 0.707
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.526 0.000 0.000
y 0.000 -55.526 0.000
z 0.000 0.000 -59.526
Traceless
 xyz
x 2.000 0.000 0.000
y 0.000 2.000 0.000
z 0.000 0.000 -3.999
Polar
3z2-r2-7.999
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 11.347 0.000 0.000
y 0.000 11.347 0.000
z 0.000 0.000 4.739


<r2> (average value of r2) Å2
<r2> 398.816
(<r2>)1/2 19.970