A new method for the synthesis of 1,2,4,5-tetrarylpyrrolo[3,2-b]pyrroles has been developed employing iron(iii) perchlorate as a catalyst.

An isoreticular family of seven microporous metal-organic frameworks of the general form [ZnL] have been synthesized, where L is a 4'-substituted 2,2':6',2″-terpyridine-4,4″-dicarboxylate ligand. Each framework adopts an interpenetrated zeolitic gismondine (gis-c) topology and possesses one-dimensional square channels with ca. 9.0 Å apertures running down the crystallographic c axis. Gas adsorption measurements with N, H, CH, and CO confirm their permanent porosity. The ligand functional groups, which include phenyl, 2-tolyl, 4-chlorophenyl, 4-nitrophenyl, 2-thienyl, 3-thienyl, and 4-pyridyl, line the channel walls and tune the gas adsorption properties of these materials.

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