Triple Helical Molecular Braid and Parallel Packed Wavy Chain-Based Supramolecular Organic Frameworks with Conformation- and Packing-Dependent Luminescent Properties
作者： Kai Xing , Ruiqing Fan , Jizhuang Fan , Xi Du , Yang Song
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摘要: Two three-dimensional supramolecular organic frameworks, [(H2bpdc)0.5(bipy)0.5] (1) and [(H3dpob)(bipy)·3H2O] (2), have been successfully constructed structurally characterized (H2bpdc = 2,2′-biphenyldicarboxylic acid; H3dpob 3-(2′,3′-dicarboxylphenoxy)benzonic bipy 4,4′-bipydine). 1 is driven by C–H···π hydrogen-bonded packing to three dimension. 2 origins form parallel-packed wavy chains show π–π stacking-directed structure. After the SOFs are formed via weak noncovalent interaction, an enhancement in thermostability. The different conformations of induced interactions responsible for huge dissimilarity structural luminescence behavior between them. Under excitation 365 nm ultraviolet light, stronger blue-white green-white luminescent emissions solid state, respectively. In comparison with 2, framework shows superior performance aggregation-induced emission (AIE) activity, wh...
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