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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Synthesis and Characterization of C60 Dyads with Highly Photoactive Dicyanoethylenylated Diphenylaminofluorene Chromophore Antenna
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Synthesis and Characterization of C60 Dyads with Highly Photoactive Dicyanoethylenylated Diphenylaminofluorene Chromophore Antenna

机译:具有高光敏性的二氰基乙烯基化的二苯氨基芴发色团天线的C60二元化合物的合成与表征

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摘要

We designed and synthesized a novel class of highly photoactive C60(>CPAF-Cn) nanostructures for their potential uses as photonic materials, using CPAF-Cn chromophore as the light-harvesting antenna. It is a part of our research effort on developing C60(>DPAFCn)- based nonlinear photonic organics. We extended the structural modification by chemical conversion of the keto group in C60(>DPAF-Cn) compound to a 1,1-dicyanoethylenyl moiety with stronger electron-withdrawing ability that resulted in a largely increased electronic polarization of the chromophore conjugate. Structural characterization of several C60(>CPAF-Cn) containing variable alkyl sidechains was made by various spectroscopic methods. Interestingly, the chemical modification leads to a large bathochromic shift of the major absorption band of C60(>CPAF-Cn) in the visible spectrum up to 600 nm and extending the photoresponsive capability of C60–DCE–DPAF nanostructures to longer red wavelengths than the parent C60(>DPAF-Cn)materials.
机译:我们设计和合成了一类新型的具有高光活性的C60(> CPAF-Cn)纳米结构,以其潜在的光子材料用途,使用CPAF-Cn发色团作为光收集天线。这是我们开发基于C60(> DPAFCn)的非线性光子有机物的研究工作的一部分。我们通过将C60(> DPAF-Cn)化合物中的酮基化学转化为具有更强吸电子能力的1,1-二氰亚乙烯基部分而扩展了结构修饰,这导致生色团共轭物的电子极化大大增加。通过各种光谱方法对几个含有可变烷基侧链的C60(> CPAF-Cn)进行结构表征。有趣的是,化学修饰导致C60(> CPAF-Cn)的主要吸收带在高达600 nm的可见光谱中发生大的红移,并将C60–DCE–DPAF纳米结构的光响应能力扩展到比C60–DCE–DPAF更长的红色波长。父级C60(> DPAF-Cn)材料。

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