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

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-7739.736862
Energy at 298.15K-7739.745813
HF Energy-7739.736862
Nuclear repulsion energy768.198183
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 BLYP/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 438 436 0.32      
2 A1 178 177 0.57      
3 E 470 467 148.41      
3 E 470 467 148.43      
4 E 123 123 1.69      
4 E 123 123 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 901.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 896.4 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 BLYP/3-21G
ABC
0.03738 0.03738 0.01896

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.656
Br2 0.000 1.938 -0.044
Br3 1.678 -0.969 -0.044
Br4 -1.678 -0.969 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N12.06032.06032.0603
Br22.06033.35633.3563
Br32.06033.35633.3563
Br42.06033.35633.3563

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 109.080 Br2 N1 Br4 109.080
Br3 N1 Br4 109.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.372      
2 Br 0.124      
3 Br 0.124      
4 Br 0.124      


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 -0.724 0.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.037 0.000 0.000
y 0.000 -57.037 0.000
z 0.000 0.000 -60.453
Traceless
 xyz
x 1.708 0.000 0.000
y 0.000 1.708 0.000
z 0.000 0.000 -3.416
Polar
3z2-r2-6.832
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 11.175 0.000 0.000
y 0.000 11.175 0.000
z 0.000 0.000 2.443


<r2> (average value of r2) Å2
<r2> 433.826
(<r2>)1/2 20.828