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

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-7777.597675
Energy at 298.15K-7777.607016
HF Energy-7777.597675
Nuclear repulsion energy824.096937
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/aug-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 480 460 1.38      
2 A1 223 214 0.36      
3 E 595 570 50.83      
3 E 595 570 50.81      
4 E 154 148 0.46      
4 E 154 148 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 1100.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 1054.2 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 mPW1PW91/aug-cc-pVDZ
ABC
0.04307 0.04307 0.02188

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.639
Br2 0.000 1.804 -0.043
Br3 1.562 -0.902 -0.043
Br4 -1.562 -0.902 -0.043

Atom - Atom Distances (Å)
  N1 Br2 Br3 Br4
N11.92831.92831.9283
Br21.92833.12463.1246
Br31.92833.12463.1246
Br41.92833.12463.1246

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 108.226 Br2 N1 Br4 108.226
Br3 N1 Br4 108.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.908      
2 Br 0.303      
3 Br 0.303      
4 Br 0.303      


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 -0.497 0.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.238 0.000 0.000
y 0.000 -57.238 0.000
z 0.000 0.000 -61.617
Traceless
 xyz
x 2.189 0.000 0.000
y 0.000 2.189 0.000
z 0.000 0.000 -4.378
Polar
3z2-r2-8.757
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 13.501 0.000 0.000
y 0.000 13.502 -0.001
z 0.000 -0.001 7.984


<r2> (average value of r2) Å2
<r2> 381.412
(<r2>)1/2 19.530