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Experimental data for N3+ (azide cation)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/N3/c1-3-2 DUAJIKVIRGATIW-UHFFFAOYSA-N [N]=[N+]=[N-]
State Conformation
2Πg D*H
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation 414.22   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy 226.47   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 Σg+ 1320   webbook      
2 Σu+ 1645          
3 Πu 457          

vibrational zero-point energy: 1939.3 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for N3+ (azide cation).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.43145   1988Bra/Ber:1762

Calculated rotational constants for N3+ (azide cation).
Product of moments of inertia moments of inertia
39.07208amu Å2   6.488173E-39gm cm2
Geometric Data
picture of azide cation

Point Group D∞h


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rNN 1.181   1 2 1988Bra/Ber:1762 r0

Cartesians
Atom x (Å) y (Å) z (Å)
N1 0.0000 0.0000 0.0000
N2 0.0000 0.0000 1.1812
N3 0.0000 0.0000 -1.1812

Atom - Atom Distances bond lengths
Distances in Å
  N1 N2 N3
N1   1.18121.1812
N2 1.1812   2.3623
N3 1.18122.3623  

Calculated geometries for N3+ (azide cation).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle
N2 N1 N3 180.000

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
N=N 2

Connectivity
Atom 1 Atom 2
N1 N2
N1 N3
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 2   2Πg

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.060 0.010     webbook

Electron Affinity (eV)
Electron Affinity unc. reference
2.680 0.030 webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 2Πg D∞h True           D∞h 0 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for N3+ (azide cation).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 2Πg D∞h True       D∞h 0 1

Calculated electric quadrupole moments for N3+ (azide cation).

References
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squib reference DOI
1988Bra/Ber:1762 CR Brazier, PF Bernath, JB Burkholder, CJ Howard "Fourier transform spectroscopy of the nu3 band of the N3 radical" J. Chem. Phys. 89, 1762, 1988 10.1063/1.455122
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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