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All results from a given calculation for HN3 (hydrogen azide)

using model chemistry: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-163.921144
Energy at 298.15K 
HF Energy-163.921144
Nuclear repulsion energy63.135868
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/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3714 3374 50.42 105.09 0.24 0.39
2 A' 2493 2265 619.91 76.47 0.31 0.48
3 A' 1444 1311 46.92 17.19 0.23 0.37
4 A' 1237 1124 278.85 4.45 0.00 0.00
5 A' 599 544 16.44 0.50 0.35 0.52
6 A" 700 636 1.51 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5093.4 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 4627.3 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/aug-cc-pVQZ
ABC
20.79363 0.42141 0.41303

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.073 -1.112 0.000
N2 0.000 0.119 0.000
N3 -0.050 1.204 0.000
H4 0.859 -1.484 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.23322.31601.0026
N21.23321.08601.8184
N32.31601.08602.8372
H41.00261.81842.8372

picture of hydrogen azide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 N3 173.983 N2 N1 H4 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.378      
2 N 0.252      
3 N -0.178      
4 H 0.305      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.602 -0.098 0.000 1.605
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.411 -2.662 0.000
y -2.662 -19.315 0.000
z 0.000 0.000 -17.380
Traceless
 xyz
x 2.937 -2.662 0.000
y -2.662 -2.919 0.000
z 0.000 0.000 -0.018
Polar
3z2-r2-0.036
x2-y23.904
xy-2.662
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.461 -0.184 0.000
y -0.184 5.710 0.000
z 0.000 0.000 2.376


<r2> (average value of r2) Å2
<r2> 32.742
(<r2>)1/2 5.722