return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-164.696520
Energy at 298.15K 
HF Energy-164.696520
Nuclear repulsion energy59.884516
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 BLYP/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' 3318 3293 11.91 163.49 0.35 0.52
2 A' 2064 2048 177.05 6.71 0.34 0.51
3 A' 1223 1213 25.55 23.76 0.47 0.64
4 A' 1046 1038 209.57 10.05 0.27 0.43
5 A' 475 471 11.35 0.41 0.58 0.73
6 A" 509 505 8.62 0.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4317.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 4284.4 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 BLYP/6-31G
ABC
19.91185 0.38016 0.37304

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.402 -1.082 0.000
N2 0.000 0.121 0.000
N3 -0.606 1.128 0.000
H4 1.434 -1.169 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.26832.42891.0357
N21.26831.17541.9285
N32.42891.17543.0719
H41.03571.92853.0719

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 167.401 N2 N1 H4 113.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.286      
2 N 0.070      
3 N -0.099      
4 H 0.315      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.206 -0.459 0.000 2.253
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.949 -0.717 0.000
y -0.717 -20.286 0.000
z 0.000 0.000 -17.058
Traceless
 xyz
x 4.723 -0.717 0.000
y -0.717 -4.782 0.000
z 0.000 0.000 0.059
Polar
3z2-r20.118
x2-y26.336
xy-0.717
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.583 -1.795 0.000
y -1.795 4.776 0.000
z 0.000 0.000 1.054


<r2> (average value of r2) Å2
<r2> 35.006
(<r2>)1/2 5.917