ISSN:
1572-8854
Keywords:
Hydroxylamine structures
;
hydrazinium structures
;
dinitramide structures
;
energetic materials
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The crystal structures of two amine base salts, the hydrazinium, 1, and the hydroxylammonium, 2, of dinitramide have been determined. 1 crystallizes in the monoclinic space group P 21/c with cell dimensions a = 8.312(3), b = 5.654(1), c = 10.659(3) Å, β = 93.73(3)°, while 2 crystallizes in the orthorhombic space group Pcab (nonstandard setting of Pbca) with cell dimensions a = 6.439(2), b = 12.470(4), c = 30.816(14) Å. The structures of 1 and 2 contain protonated amine cations and dinitramide anions linked by hydrogen bonding. In addition, in 2 there are both neutral and zwitterionic hydroxylamine moieties involved in the hydrogen bonding scheme. Thus in 2 the complete formula unit is (NH3 +OH)2[N3O4 −]2 · (NH2OH) middot; (NH3 +O−), and in this structure the hydroxylamine exists in its three possible forms: protonated, neutral, and zwitterionic. In both structures the conformations adopted by the dinitramine anions can be related to the types of hydrogen bonds it forms with the surrounding amine cations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1011362427996
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