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)
| 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
NH
2NN
+ (hydrazoic acid, protonated).
Geometric Data
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 - Atom Distances
Distances in Å
Calculated geometries
for NH
2NN
+ (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
| 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
NH
2NN
+ (hydrazoic acid, protonated).
Electric quadrupole moment
| 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
NH
2NN
+ (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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