Crystal structure of poly[[[μ(4)-5-(9H-carbazol-9-yl)isophthalato][μ(3)-5-(9H-carbazol-9-yl)isophthalato]bis­(di­methyl­formamide)(methanol)dizinc] di­methyl­formamide monosolvate]

The structure of the polymeric title compound, {[Zn(2)(C(20)H(11)NO(4))(2)(C(3)H(7)NO)(2)(CH(3)OH)]·C(3)H(7)NO}(n), comprises carbazolylisophthalate moieties connecting dimetallic tetra­carboxyl­ate zinc secondary building units (SBUs) parallel to [100] and [010], leading to a layer-like arrangement parallel to (001). Each SBU consists of two Zn atoms in slightly distorted tetra­hedral and octa­hedral coordination environments [Zn⋯Zn = 3.5953 (6) Å]. Three carboxyl­ate groups bridge the two Zn atoms in a μ(2)-O:O′ mode, whereas the fourth coordinates through a single carboxyl­ate O atom (μ(1)-O). The O atoms of two di­methyl­formamide (DMF) and one methanol mol­ecule complete the Zn coordination spheres. The methanol ligand inter­acts with the noncoordinating DMF mol­ecule via an O—H⋯O hydrogen bond of medium strength. Carbazoles between the layers inter­digitate through weak C—H⋯.π inter­actions to form a laminar solid stacked along [010]. Two kinds of C—H⋯π inter­actions are present, both with a distance of 2.64 Å, between the H atoms and the centroids, and a third C—H⋯π inter­action, where the aromatic H atom is located above the carbazole N-atom lone pair (H⋯N = 2.89 Å). Several C—H⋯O inter­actions occur between the coordinating DMF mol­ecule, the DMF solvent mol­ecule, and ligating carboxyl­ate O atoms.