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: B2PLYP/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-7775.696549
Energy at 298.15K-7775.705750
HF Energy-7775.498912
Nuclear repulsion energy809.548090
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/cc-pVDZ
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 448 429 0.05      
2 A1 210 201 0.47      
3 E 542 519 57.02      
3 E 542 519 57.01      
4 E 147 141 0.70      
4 E 147 141 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 1018.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 975.4 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 B2PLYP/cc-pVDZ
ABC
0.04159 0.04159 0.02114

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.662
Br2 0.000 1.835 -0.044
Br3 1.589 -0.918 -0.044
Br4 -1.589 -0.918 -0.044

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.96651.96651.9665
Br21.96653.17893.1789
Br31.96653.17893.1789
Br41.96653.17893.1789

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 107.854 Br2 N1 Br4 107.854
Br3 N1 Br4 107.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.362      
2 Br 0.121      
3 Br 0.121      
4 Br 0.121      


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 -0.757 0.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.824 0.000 0.000
y 0.000 -56.824 0.000
z 0.000 0.000 -61.340
Traceless
 xyz
x 2.258 0.000 0.000
y 0.000 2.258 0.000
z 0.000 0.000 -4.516
Polar
3z2-r2-9.033
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 10.457 0.000 0.000
y 0.000 10.457 0.000
z 0.000 0.000 4.559


<r2> (average value of r2) Å2
<r2> 393.392
(<r2>)1/2 19.834