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Experimental data for NH2NN+ (hydrazoic acid, protonated)

22 02 02 11 45
Other names
Diazonium, amino-; Aminodiazonium;
INChI INChIKey SMILES IUPAC name
InChI=1S/H2N3/c1-3-2/h1H2/q+1 N[N+]#N
State Conformation
1A' CS
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
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 A' 3170   1993Chr/Wil:1836-1842       in crystal NH2 s-str
2 A' 2318           N#N str
3 A' 1547           NH2 scissors
4 A' 1129           NN stretch
5 A' 530           NNN bend
6 A' 489           NH2 wag
7 A" 3280           NH2 a-str
8 A" 1259           NH2 rock
9 A" 418           NNN bend

vibrational zero-point energy: 7070.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for NH2NN+ (hydrazoic acid, protonated).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment

Calculated rotational constants for NH2NN+ (hydrazoic acid, protonated).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of hydrazoic acid, protonated

Point Group Cs


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

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for NH2NN+ (hydrazoic acid, protonated).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-N 2
N-N 1
N#N 1

Connectivity
Atom 1 Atom 2
N1 N2
N1 N3
N3 H4
N3 H5
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
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 1A' Cs True           Cs 2 3
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 NH2NN+ (hydrazoic acid, protonated).
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 1A' Cs True       Cs 2 3

Calculated electric quadrupole moments for NH2NN+ (hydrazoic acid, protonated).

References
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squib reference DOI
1993Chr/Wil:1836-1842 KO Christe, WW Wilson, DA Dixon, SI Khan, R Ban, T Metzenthin, R Lu "The Aminodiazonium Cation, H2N3+" J. Am. Chem. Soc. 1993, 115, 1836-1842 10.1021/ja00058a031

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