often an important process in industry and chemical analysis. Liquid-membrane transport in which the extraction and stripping operations are combined in a single process reduces the solvent inventory requirement, and also allows the use of expensive and highly selective extractions, which otherwise would be uneconomic in solvent extractants. For these reasons, liquid-membrane transport has attr...

The trinuclear cation of the title compound, [Ni(3)(C(2)H(5)N(5))(6)(H(2)O)(6)][SiF(6)](3)·20H(2)O, has the six 3,5-diamino-1,2,4-triazole ligands each bridging two metal atoms; the metal atom in the middle, which lies on a special position (of 32 site symmetry), is connected to six N atoms in an octa-hedral geometry. The other metal atom, which lies on a special position (of 3 site symmetry), ...