A new crystal modification of diammonium hydrogen phosphate, (NH(4))(2)(HPO(4)).

ABSTRACT: The addition of hexa-fluorido-phosphate salts (ammonium, silver, thallium or potassium) is usually used to precipitate complex cations from aqueous solutions. It has long been known that PF(6) (-) is sensitive towards hydrolysis under acidic conditions [Gebala & Jones (1969 ▶). J. Inorg. Nucl. Chem.31, 771-776; Plakhotnyk et al. (2005 ▶). J. Fluorine Chem.126, 27-31]. During the course of our investigation into coinage metal complexes of diphosphine ligands, we used ammonium hexa-fluorido-phosphate in order to crystallize [Ag(diphos-phine)(2)]PF(6) complexes. From these solutions we always obtained needle-like crystals which turned out to be the title compound, 2NH(4) (+)·HPO(4) (2-). It was received as the hydrolysis product of NH(4)PF(6). The crystals are a new modification of diammonium

SUBMITTER: Kunz PC 

PROVIDER: S-EPMC2984071 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature