Poly[di-μ₃-chlorido-di-μ₂-chlorido-{μ₄-N,N,N′,N′-tetra­kis­[(diphenyl­phosphan­yl)meth­yl]benzene-1,4-diamine-κ⁴P:P′:P′′:P′′′}tetra­copper(II)]

In the title complex, [Cu₄Cl₄(C₅₈H₅₂N₂P₄)]_n, four Cu^II atoms are held together via two doubly bridging and two triply bridging chlorides, forming a stair-like Cu₄Cl₄ core having crystallographically imposed inversion symmetry, while the benzene-1,4-diamine ligand (with a crystallographic inversion center at the centroid) acts in a tetra­dentate coordination mode, bridging two adjacent Cu₄Cl₄ cores, resulting in a chain along the a-axis direction. One Cu atom has a distorted tetra­hedral geometry, coordinated by one P atom, one μ₂-Cl and two μ₃-Cl atoms, while the second Cu atom adopts a trigonal geometry, coordinated by one P atom, one μ₂-Cl and one μ₃-Cl atoms.

Poly[chlorido[μ₄-2,2′-(2-methyl-1H-benzimidazol-3-ium-1,3-di­yl)diacetato]­zinc]

The title compound, [Zn(C₁₂H₁₁N₂O₄)Cl]_n, contains a centrosymmetric dimetal tetra­carboxyl­ate paddle-wheel moiety in which the Zn^II atom is square-pyramidally coordinated by four carboxyl­ate O atoms at the basal positions and one Cl⁻ anion at the apical position. Each paddle-wheel unit is joined to four such neighbours through bridging dicarboxyl­ate ligands, producing a two-dimensional undulating layer parallel to (-101). Adjacent sheets are stacked in a parallel fashion to form a three-dimensional supra­molecular structure which is stabilized by inter­layer π–π inter­actions between benzene rings, with a centroid–centroid distance of 3.722 Å. The range of Zn—O bond lengths is 2.0440 (17)–2.1256 (15) Å and the Zn—Cl bond length is 2.2622 (6) Å.