Fullerenols have been known for decades; however, the photoluminescent (PL) properties and applications in supramolecular chemistry of these molecules have not been well addressed. Herein, a strategy has been developed to purify the as‐prepared fullerenols, and the photoluminescence and capabilities of these molecules to form supramolecular self‐assemblies were systematically studied. It was found that fullerenols show wavelength‐dependent emission with an absolute fluorescent quantum yield of approximately 3.5 %. The PL characteristics are reminiscent of carbon dots, especially those obtained by using the top–down method. The studied fullerenols can be used to detect Cu²⁺ ions with a limit of detection down to 3.50 μm. In addition, the amphiphilicity of the fullerenols can be readily tuned by ionic complexation with cationic surfactants, such as 1‐tetradecyl‐3‐methylimidazoliumbromide (C₁₄mimB) and tetradecyltrimethylammonium bromide (TTAB). On increasing the concentration of the surfactant, the transition of aggregates was induced from highly ordered vesicles to honeycomb‐structured crystals and finally to giant micelles. After the formation of supramolecular self‐assemblies, enhancement of photoluminescence was observed, which can be ascribed to the suppression of intramolecular vibrations and motion combined with the loosely packed self‐assembly array. This study provides a facile way to generate PL nanoarchitectures, which may find applications in fluorescent sensing, drug delivery, and optoelectronics.

中文翻译：

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富勒烯醇的再研究：高度单分散的光致发光纳米材料是超分子化学的理想构建基块

富勒烯醇已有数十年的历史。但是，这些分子的光致发光（PL）特性及其在超分子化学中的应用尚未得到很好的解决。本文中，已经开发了一种纯化制备的富勒烯醇的策略，并且系统地研究了这些分子的光致发光和形成超分子自组装体的能力。发现富勒烯醇显示出与波长有关的发射，绝对荧光量子产率约为3.5％。PL特性让人想起碳点，尤其是那些使用自顶向下方法获得的碳点。所研究的富勒醇可用于检测的Cu ²⁺离子与检测限低至3.50μ米。此外，富勒烯醇的两亲性可通过与阳离子表面活性剂（例如1-十四烷基-3-甲基咪唑鎓溴化物（C ₁₄ mimB）和十四烷基三甲基溴化铵（TTAB））进行离子络合而容易地调节。随着表面活性剂浓度的增加，聚集体从高度有序的囊泡转变为蜂窝状晶体，最后转变为巨大的胶束。超分子自组装形成后，观察到光致发光增强，这归因于与松散堆积的自组装阵列相结合的分子内振动和运动的抑制。这项研究提供了一种简便的方法来生成PL纳米结构，该结构可能会在荧光传感，药物输送和光电领域得到应用。