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首页> 外文期刊>Chemistry: A European journal >Large-scale honeycomb microstructures constructed by platinum-acetylide gelators through supramolecular self-assembly
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Large-scale honeycomb microstructures constructed by platinum-acetylide gelators through supramolecular self-assembly

机译：铂-乙炔胶凝剂通过超分子自组装构建的大规模蜂窝微结构

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摘要

A series of new platinum-acetylide complexes 4 a-4 c and 6 a-6 c were synthesized and characterized. The gelation properties of these compounds were investigated by the "stable-to-inversion-of-test-tube" method. Unlike compounds 4 a-4 c, amides 6 b and 6 c can gelate a variety of nonpolar alkyl solvents; this result indicates that the hydrogen bonds between amide groups play an important role in the formation of metallic organogels. Interestingly, compared to the typical morphologies of known organogels or metallic organogels, compounds 6 b and 6 c exhibited highly ordered honeycomb patterns on a large-scale (determined by SEM analysis). To investigate the driving forces for the self-assembly process, concentration-dependent ~1H NMR spectroscopy and a competitive experiment between hydrogen bonds were used to confirm that intermolecular hydrogen bonding play an essential role during the formation of supramolecular aggregates.
机译：合成并表征了一系列新的铂-乙炔化物络合物4a-4c和6a-6c。这些化合物的胶凝特性通过“试管稳定转化”方法进行研究。与化合物4a-4c不同，酰胺6b和6c可以使多种非极性烷基溶剂胶凝。该结果表明酰胺基团之间的氢键在金属有机凝胶的形成中起重要作用。有趣的是，与已知有机凝胶或金属有机凝胶的典型形态相比，化合物6b和6c大规模显示出高度有序的蜂窝状图案（由SEM分析确定）。为了研究自组装过程的驱动力，使用浓度依赖的〜1H NMR光谱和氢键之间的竞争性实验来确认分子间氢键在超分子聚集体形成过程中起着至关重要的作用。

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