Mixed crystal of bis-(ammonium/oxonium) tetra-aqua-μ₃-fluorido-dodeca-kis-(μ₂-tri-fluoro-acetato)octa-hedro-hexa-ytterbiate(III) tetra-hydrate, [(NH₄)_1-x (H₃O) _x ]₂[Yb₆F₈(O₂CCF₃)₁₂(H₂O)₄]·4H₂O (x = 1/4), containing a hexa-nuclear ytterbium(III) carboxyl-ate complex with face-capping fluoride ligands and comprising an unusual kind of substitutional disorder.

ABSTRACT: The reaction of ytterbium metal with ammonium tri-fluoro-acetate in liquid ammonia resulted in a green substance comprising a substantial amount of ytterbium(II) tri-fluoro-acetate that is a useful precursor for the oxidative synthesis of the new ytterbium(III) compound, [(NH₄)_1-x (H₃O) _x ]₂[Yb₆F₈(O₂CCF₃)₁₂(H₂O)₄]·4H₂O (x = 1/4), in aqueous tri-fluoro-acetic acid. This mixed ammonium/oxonium crystalline solid is the first example of a substance containing an octa-hedro-hexa-nuclear ytterbium(III) complex with μ₃-face-capping fluorido ligands. The main structural features of its [Yb₆F₈] cor

SUBMITTER: Morsbach F 

PROVIDER: S-EPMC9431779 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature