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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-164.725008
Energy at 298.15K 
HF Energy-164.725008
Nuclear repulsion energy61.777150
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 B1B95/6-31G*
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' 3527 3348 34.42 125.56 0.33 0.49
2 A' 2353 2234 346.92 15.94 0.33 0.50
3 A' 1338 1270 0.30 20.53 0.33 0.50
4 A' 1210 1148 222.05 5.15 0.47 0.64
5 A' 542 514 16.74 0.63 0.55 0.71
6 A" 619 588 0.38 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4794.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 4551.1 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 B1B95/6-31G*
ABC
20.53894 0.40455 0.39674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.076 -1.124 0.000
N2 0.000 0.108 0.000
N3 -0.227 1.218 0.000
H4 1.053 -1.413 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.23442.36161.0186
N21.23441.13301.8497
N32.36161.13302.9254
H41.01861.84972.9254

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 171.999 N2 N1 H4 109.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.493      
2 N 0.364      
3 N -0.238      
4 H 0.367      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.834 -0.712 0.000 1.967
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.426 -2.141 0.000
y -2.141 -19.202 0.000
z 0.000 0.000 -16.855
Traceless
 xyz
x 3.602 -2.141 0.000
y -2.141 -3.561 0.000
z 0.000 0.000 -0.041
Polar
3z2-r2-0.081
x2-y24.776
xy-2.141
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.839 -0.767 0.000
y -0.767 5.229 0.000
z 0.000 0.000 1.257


<r2> (average value of r2) Å2
<r2> 33.327
(<r2>)1/2 5.773