Poly[[diaqua­(μ ₂-1,4-dioxane-κ ² O: O′)(μ ₂-2,3,5,6-tetra­fluoro­benzene-1,4-dicarboxyl­ato-κ ² O ¹: O ⁴)copper(II)] 1,4-dioxane disolvate dihydrate]

Abstract

In the title complex, {[Cu(C ₈F ₄O ₄)(C ₄H ₈O ₂)(H ₂O) ₂]·2C ₄H ₈O ₂·2H ₂O} _n , the Cu ^II ion is six-coordinated by two oxygen donors from two trans 2,3,5,6-tetra­fluoro-1,4-dicarboxyl­ate (BDC-F ₄) ligands, two O atoms from two chair 1,4-dioxane ligands and two O atoms from two terminal water mol­ecules, adopting a distorted octa­hedral coordinated geometry. Each BDC-F ₄ anion bridges two Cu ^II ions in a bis-monodentate fashion, forming a [Cu(BDC-F ₄)] _n chain. These chains are further linked by bridging 1,4-dioxane ligands, generating a two-dimensional net with approximately recta­ngular grids of 11.253 × 7.654 Å. Such adjacent parallel layers are connected by O—H⋯O hydrogen bonds between guest water mol­ecules and the uncoordinated carboxyl­ate O atoms and coordinated water mol­ecules into the final three-dimensional supra­molecular network.