CuW(py)₂(H₂ O)₂O₂F₄ and CuW(py)₄O₂F₄

Two new Cu^II/W^VI oxyfluorides, catena-poly[(trifluorooxotungsten)-μ-fluoro-[diaquabis(pyridine­N)copper]-μ-oxo] or catena-poly[(difluoro-cis-dioxotungsten)-μ-fluoro-[diaquabis(pyridine­N)copper]-μ-fluoro], [CuW-O₂F₄(C₅H₅N)₂(H₂O)₂], (I), and catena-poly[(trifluorooxotungsten)-μ-fluoro-[tetrakis(pyridine-N)copper]-μ-oxo] or catena-poly[(difluoro-cis-dioxotungsten)-μ-fluoro-[tetrakis(pyridine­N)copper]-μ-fluoro], [CuW-O₂F₄(C₅H₅N)₄], (II), have been synthesized. The first complex, (I), contains one-dimensional chains of alternating [Cu(py)₂(H₂O)₂(O/F)_2/2]^+0.66 cations and [W(O/F)₄(O/F)_2/2]^−0.66 anions. The corner-linked octahedra form infinite and parallel chains that run along the b axis. The second compound, (II), contains one-dimensional chains of alternating [Cu(py)₄(O/F)_2/2]^+0.66 cations and [W(O/F)₄(O/F)_2/2]^−0.66 anions. The corner-linked octahedra form infinite and non-intersecting chains that switch between [110] and [10] every c/2.

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