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Polyrotaxane-like and Interpenetrating Metal−Organic Frameworks (MOFs) Constructed from Biphenyl-4,4′-Dicarboxylate and Bis(imidazole) Ligand

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posted on 2009-11-04, 00:00 authored by Yang Liu, Yan Qi, Yan-Yan Lv, Yun-Xia Che, Ji-Min Zheng
The paper presents three interesting entanglement systems, including two polyrotaxane-like and one interpenetrating frameworks, namely, [Co(L1)(bpdc)] (1), [Co(L2)(bpdc)] (2), and [Co(L3)1.5(bpdc)(H2O)]·(L3) (3), constructed from biphenyl-4,4′-dicarboxylate and bis(imidazole) ligands (L1 = 1,6-bis(imidazol-1-yl)-hexane, and rods that are interlaced in a parallel fashion to result in 2D → 2D polyrotaxane-like motifs (L2 = 1,4-bis(imidazol-1-ylmethyl)benzene and L3 = 1,4-bis(1-imidazolyl)-benzene)). Both compounds 1 and 2 contain loops. Compound 3 represents the first example of a triply interpenetrated 5-connected 4466 topology network.

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