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首页> 外文期刊>Chemistry: A European journal >A Bichromophore Based on Perylene and Terrylene for Energy Transfer Studies at the Single-Molecule Level
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A Bichromophore Based on Perylene and Terrylene for Energy Transfer Studies at the Single-Molecule Level

机译：基于Per和三甲苯的双色团用于单分子水平的能量转移研究

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摘要

A functionalized dialkylperylene and a modified terrylenetetracarboxdiimide (TTCDI) were joined together by a hexanediyl spacer. The resulting bichromophoric molecule 4 is a suitable model system for donor-acceptor energy transfer studies at the single-molecule level. With its absorption and fluorescence maximum at shorter wavelengths (#lambda#_(max) = 450 nm, #lambda#_(fl) = 458 nm) the dialkylperylene acts as the donor, while the TTCDI with (#lambda#_(max) = 665 nm and #lambda#_(fl) = 705 nm is the acceptor molecule. The synthetic route to the new bichromophoric molecule and its optical properties (UV/Vis, fluorescence spectroscopy) are presented herein. Energy transfer from the perlyene to the terrylene moiety was confirmed by conventional ensemble fluorescence excitation and emission spectroscopy. Single bichromophores 4 embedded in polyvinylbutyral were imaged with a scanning confocal optical microscope at room temperature by selectively exciting the perylene chromophore and detecting the terrylene emission.
机译：通过己二基间隔基将官能化的二烷基per和改性的ylene四碳二亚胺（TTCDI）连接在一起。所得的双色分子4是用于单分子水平供体-受体能量转移研究的合适模型系统。由于其在较短波长下的吸收和荧光最大值（#lambda #_（max）= 450 nm，#lambda #_（fl）= 458 nm），二烷基per用作供体，而TTCDI具有（#lambda #_（max ）= 665 nm，＃lambda #_（fl）= 705 nm是受体分子，本文介绍了新的双色性分子的合成路线及其光学性质（UV / Vis，荧光光谱），能量从the烯转移到通过常规的整体荧光激发和发射光谱法确认了三甲苯基部分，在室温下通过扫描共聚焦光学显微镜通过选择性激发the发色团并检测三甲苯的发射，将包埋在聚乙烯醇缩丁醛中的单个双色团4成像。

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