Interpenetration in [Cd(isonicotinate)(2)(1,2-bis(4-pyridyl)ethane)(0.5)(H2O)](n), a novel octahedral polymer containing an unusual two-dimensional bilayer motif generated by self-assembly of rectangle building blocks

A hydrothermally synthesized mixed-ligand molecular solid composed of pilla red bilayers has been formulated; it presents a new remarkable three-dimens ional architecture sustained by the catenation of two-fold decked layers, a nd exhibits intense photoluminescence upon photoexcitation at 314 nm.