return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-7771.727655
Energy at 298.15K 
HF Energy-7771.727655
Nuclear repulsion energy839.891865
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/daug-cc-pVTZ
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 442 400 3.28 36.27 0.09 0.17
2 A1 246 223 0.41 7.53 0.08 0.15
3 E 783 708 1.91 23.56 0.75 0.86
3 E 783 708 1.91 23.56 0.75 0.86
4 E 179 162 0.00 2.85 0.75 0.86
4 E 179 162 0.00 2.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1305.8 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 1181.2 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/daug-cc-pVTZ
ABC
0.04452 0.04452 0.02250

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.521
Br2 0.000 1.779 -0.035
Br3 1.540 -0.889 -0.035
Br4 -1.540 -0.889 -0.035

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.86371.86371.8637
Br21.86373.08103.0810
Br31.86373.08103.0810
Br41.86373.08103.0810

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 111.494 Br2 N1 Br4 111.494
Br3 N1 Br4 111.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.485      
2 Br 0.162      
3 Br 0.162      
4 Br 0.162      


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 -0.521 0.521
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.481 0.000 0.000
y 0.000 -57.481 0.000
z 0.000 0.000 -62.178
Traceless
 xyz
x 2.349 0.000 0.000
y 0.000 2.349 0.000
z 0.000 0.000 -4.697
Polar
3z2-r2-9.395
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 12.476 0.000 0.000
y 0.000 12.476 0.000
z 0.000 0.000 7.931


<r2> (average value of r2) Å2
<r2> 371.147
(<r2>)1/2 19.265