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Three Interpenetrated Frameworks Assembly from a Long Multicarboxylate Ligand and Transition Metal

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posted on 06.02.2008, 00:00 by Huan-Yu Wang, Shan Gao, Li-Hua Huo, Seik Weng Ng, Jing-Gui Zhao
Three three-dimensional polymers, namely, [Zn(bpea)(H2O)]n (1), [Cd(bpea)(H2O)]n (2), and [Ni(bpea)(4,4′-bipyridine)(pyridine)]n (3) have been synthesized by the hydrothermal reaction of ZnII, CdII, or NiII salts with biphenylethene-4,4′-dicarboxylic acid. Complexes 1 and 2 have a 2-fold interpenetrating three-dimensional (3D) structure with Pts topology, and complex 1 exhibits strong fluorescent emission bands at 435 and 459 nm in the solid state at room temperature. Complex 3 is a 3D structure with an unprecedented 9-fold interpenetrated Ths topology.

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