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

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-164.754484
Energy at 298.15K 
HF Energy-164.754484
Nuclear repulsion energy61.756106
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/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 A' 3510 3364 43.72 125.13 0.33 0.50
2 A' 2348 2251 339.53 14.62 0.37 0.54
3 A' 1333 1277 2.70 20.18 0.30 0.46
4 A' 1202 1152 195.64 4.35 0.57 0.72
5 A' 542 519 16.54 0.71 0.53 0.69
6 A" 618 592 0.37 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4776.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 4577.2 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/cc-pVDZ
ABC
20.13349 0.40472 0.39675

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.079 -1.124 0.000
N2 0.000 0.108 0.000
N3 -0.232 1.217 0.000
H4 1.065 -1.401 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.23442.36171.0241
N21.23441.13321.8472
N32.36171.13322.9220
H41.02411.84722.9220

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 171.895 N2 N1 H4 109.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.208      
2 N 0.232      
3 N -0.182      
4 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.742 -0.734 0.000 1.891
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.339 -1.960 0.000
y -1.960 -19.113 0.000
z 0.000 0.000 -16.651
Traceless
 xyz
x 3.543 -1.960 0.000
y -1.960 -3.618 0.000
z 0.000 0.000 0.075
Polar
3z2-r20.150
x2-y24.774
xy-1.960
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.801 -0.777 0.000
y -0.777 5.178 0.000
z 0.000 0.000 1.237


<r2> (average value of r2) Å2
<r2> 33.244
(<r2>)1/2 5.766