ISSN:
1572-8854
Schlagwort(e):
Hydroxylamine structures
;
hydrazinium structures
;
dinitramide structures
;
energetic materials
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1011362427996
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