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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-7741.420553
Energy at 298.15K-7741.429878
HF Energy-7741.420553
Nuclear repulsion energy825.720323
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 B1B95/3-21G*
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 480 459 0.01      
2 A1 213 203 0.44      
3 E 624 596 51.93      
3 E 624 596 51.89      
4 E 148 142 0.34      
4 E 148 142 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 1119.0 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 1068.5 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 B1B95/3-21G*
ABC
0.04335 0.04335 0.02208

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.688
Br2 0.000 1.796 -0.046
Br3 1.555 -0.898 -0.046
Br4 -1.555 -0.898 -0.046

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.94001.94001.9400
Br21.94003.11043.1104
Br31.94003.11043.1104
Br41.94003.11043.1104

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 106.579 Br2 N1 Br4 106.579
Br3 N1 Br4 106.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.314      
2 Br 0.105      
3 Br 0.105      
4 Br 0.105      


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 -0.927 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.462 0.000 0.000
y 0.000 -55.462 0.000
z 0.000 0.000 -60.261
Traceless
 xyz
x 2.400 0.000 0.000
y 0.000 2.400 0.000
z 0.000 0.000 -4.799
Polar
3z2-r2-9.599
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 10.191 0.000 0.000
y 0.000 10.191 0.000
z 0.000 0.000 4.669


<r2> (average value of r2) Å2
<r2> 377.789
(<r2>)1/2 19.437