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Pillared porphyrin homologous series: intergrowth in metal-organic frameworks
Eun-Young Choi1, Paul M Barron, Richard W Novotny
1Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, USA.
Abstract:
We report three new porphyrin-based, pillared paddle-wheel homologous series: porphyrin paddle-wheel frameworks PPF-3, -4, and -5. These compounds are assembled from free base or palladium tetrakis(4-carboxyphenyl)porphine, M(NO(3))(2) (M = Co and Zn), and 4,4'-bipyridine via solvothermal reactions. The resulting solids exhibit 3D metal-organic frameworks, where 2D layers are pillared by bipyridine with three different packing arrangements.
