Two new BODIPY-fluorene-fullerene (3) and BODIPY-fluorene-BODIPY (4) conjugates were designed, synthesized, and characterized for the first time. The structural properties of compounds were investigated with elemental analysis, mass, ¹H, and ¹³C NMR techniques. Absorption and fluorescence spectroscopy were used to examine the photophysical (absorption and emission profiles, fluorescence quantum yields, and lifetimes) and photochemical (formation of singlet oxygen (¹O₂)) properties. It was observed that the novel compounds (3) and (4) showed high molar extinction coefficients and good ¹O₂ quantum yields. ¹O₂ formation ability of the BODIPY-fluorene-fullerene conjugate (3) was more efficient than that of the BODIPY-fluorene-BODIPY conjugate (4). Furthermore, photosensitization ability of both conjugate systems was more remarkable than some commonly used BODIPY based photosensitizers. The data presented in this work indicate that these two novel systems are effective ¹O₂ photosensitizers that might be used for various areas of applications such as photodynamic therapy and photocatalysis.

Graphical Abstract

中文翻译：

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新型 BODIPY-Fluorene-Fullerene 和 BODIPY-Fluorene-BODIPY 共轭物：合成、表征、光物理和光化学性质

首次设计、合成并表征了两种新的 BODIPY-芴-富勒烯 (3) 和 BODIPY-芴-BODIPY (4) 偶联物​​。通过元素分析、质量、¹ H 和¹³ C NMR 技术研究了化合物的结构特性。吸收和荧光光谱用于检查光物理（吸收和发射曲线、荧光量子产率和寿命）和光化学（单线态氧 ( ¹ O ₂ ) 的形成）特性。据观察，新化合物（3）和（4）显示出高摩尔消光系数和良好的¹ O ₂量子产率。¹欧₂BODIPY-芴-富勒烯偶联物 (3) 的形成能力比 BODIPY-芴-BODIPY 偶联物 (4) 更有效。此外，两种共轭体系的光敏能力比一些常用的基于 BODIPY 的光敏剂更显着。这项工作中提供的数据表明，这两种新型系统是有效的¹ O ₂光敏剂，可用于各种应用领域，例如光动力疗法和光催化。

图形概要