New microporous coordination polymer affording guest-coordination sites at channel walls

Utilization of a metalloligand, {[Cu(2,4-pydca)(2) (H2O)].2Et(3)NH} (1) (2,4-pydca = pyridine-2,4-dicarboxylate), as a building unit provides a novel porous coordination polymer, {[ZnCu(2,4-pydca) 2(H2O)(3)(DMF)].DMF}(n) (2), in which the Zn(II) ion at the node of the network acts as a linker and the Cu(II) ion in the channel wall is available for guest-coordination.