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: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-164.704737
Energy at 298.15K 
HF Energy-164.519816
Nuclear repulsion energy61.564088
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 B2PLYP/TZVP
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' 3515 3355 48.44 131.01 0.32 0.49
2 A' 2220 2119 337.18 11.44 0.40 0.57
3 A' 1274 1215 4.66 30.00 0.32 0.49
4 A' 1162 1109 221.37 4.51 0.27 0.42
5 A' 529 505 17.70 0.28 0.19 0.31
6 A" 570 544 1.15 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4634.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 4423.5 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 B2PLYP/TZVP
ABC
20.34300 0.40191 0.39412

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.214 -1.109 0.000
N2 0.000 0.112 0.000
N3 -0.387 1.181 0.000
H4 1.215 -1.292 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.23962.36781.0176
N21.23961.13721.8562
N32.36781.13722.9463
H41.01761.85622.9463

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 170.020 N2 N1 H4 110.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.415      
2 N 0.423      
3 N -0.231      
4 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.921 -0.521 0.000 1.991
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.420 -1.464 -0.000
y -1.464 -20.295 0.001
z -0.000 0.001 -17.260
Traceless
 xyz
x 4.358 -1.464 -0.000
y -1.464 -4.455 0.001
z -0.000 0.001 0.097
Polar
3z2-r20.195
x2-y25.875
xy-1.464
xz-0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.345 -1.194 0.000
y -1.194 5.729 -0.000
z 0.000 -0.000 1.739


<r2> (average value of r2) Å2
<r2> 33.798
(<r2>)1/2 5.814