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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-7777.557067
Energy at 298.15K-7777.566338
HF Energy-7777.557067
Nuclear repulsion energy820.271381
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 mPW1PW91/6-311G*
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 456 435 0.66      
2 A1 219 209 0.37      
3 E 577 551 64.01      
3 E 577 551 64.01      
4 E 151 144 0.64      
4 E 151 144 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 1065.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 1016.7 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 mPW1PW91/6-311G*
ABC
0.04262 0.04262 0.02162

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.615
Br2 0.000 1.815 -0.041
Br3 1.572 -0.907 -0.041
Br4 -1.572 -0.907 -0.041

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.92981.92981.9298
Br21.92983.14313.1431
Br31.92983.14313.1431
Br41.92983.14313.1431

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 109.054 Br2 N1 Br4 109.054
Br3 N1 Br4 109.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.467      
2 Br 0.156      
3 Br 0.156      
4 Br 0.156      


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 -0.835 0.835
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.789 0.000 0.000
y 0.000 -56.789 0.000
z 0.000 0.000 -61.715
Traceless
 xyz
x 2.463 0.000 0.000
y 0.000 2.463 0.000
z 0.000 0.000 -4.926
Polar
3z2-r2-9.853
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 10.833 0.000 0.000
y 0.000 10.832 0.000
z 0.000 0.000 4.711


<r2> (average value of r2) Å2
<r2> 385.100
(<r2>)1/2 19.624