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

using model chemistry: B2PLYP/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 B2PLYP/3-21G
 hartrees
Energy at 0K-7738.261192
Energy at 298.15K-7738.270308
HF Energy-7738.169411
Nuclear repulsion energy784.634348
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 B2PLYP/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 412 412 2.07      
2 A1 199 199 0.75      
3 E 539 539 68.37      
3 E 539 539 68.38      
4 E 139 139 0.50      
4 E 139 139 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 983.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 983.3 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 B2PLYP/3-21G
ABC
0.03907 0.03907 0.01986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.682
Br2 0.000 1.894 -0.045
Br3 1.640 -0.947 -0.045
Br4 -1.640 -0.947 -0.045

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N12.02872.02872.0287
Br22.02873.28003.2800
Br32.02873.28003.2800
Br42.02873.28003.2800

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 107.878 Br2 N1 Br4 107.878
Br3 N1 Br4 107.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.445      
2 Br 0.148      
3 Br 0.148      
4 Br 0.148      


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 -0.996 0.996
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.216 0.000 0.000
y 0.000 -57.216 0.000
z 0.000 0.000 -61.296
Traceless
 xyz
x 2.040 0.000 0.000
y 0.000 2.040 0.000
z 0.000 0.000 -4.081
Polar
3z2-r2-8.162
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 9.528 0.000 0.000
y 0.000 9.528 0.000
z 0.000 0.000 2.431


<r2> (average value of r2) Å2
<r2> 416.594
(<r2>)1/2 20.411