Modular approach toward supramolecular functional assemblies: Characterization of donor-spacer-acceptor ternary complexes

Otsuki J; Narita T; Tsutsumida K; Takatsuki M; Kaneko M

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Modular approach toward supramolecular functional assemblies: Characterization of donor-spacer-acceptor ternary complexes

机译：超分子功能组装的模块化方法：供体-受体-受体三元复合物的表征

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It is shown that the noncovalent donor-spacer-acceptor (DSA) motif is useful in constructing an electron-transfer assembly. As a representative example, the equilibrium and structure of one of the DSA assemblies, consisting of Zn-tetraphenylporphyrin, a spacer unit bearing pyridine and amidinium moieties, and 3,4-dinitrobenzoic acid, were studied in detail by the extensive use of UV-vis titration, fluorescence spectroscopy, and H-1 NMR, with the help of a three-component equilibrium model. Complex formation and fluorescence quenching in 20 different DSA complexes constructed from a library of five donors, two spacers, and two acceptors were investigated. It has been experimentally shown that supramolecular modular approach is useful for a systematic and quick search for a functionally optimized assembly.

机译：显示非共价供体-间隔体-受体（DSA）基序可用于构建电子传输组件。作为一个有代表性的例子，通过广泛使用UV-，详细研究了DSA组件之一的平衡和结构，该组件由Zn-四苯基卟啉，带有吡啶和am基部分的间隔单元和3,4-二硝基苯甲酸组成。借助三组分平衡模型，进行滴定，荧光光谱和H-1 NMR分析。研究了由五个供体，两个间隔基和两个受体组成的库构建的20种不同DSA配合物中的配合物形成和荧光猝灭。实验表明，超分子模块化方法可用于系统快速搜索功能最优化的组件。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2005年第27期|共7页
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Otsuki J; Narita T; Tsutsumida K; Takatsuki M; Kaneko M;
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PHOTOINDUCED ELECTRON-TRANSFER; CARBOXYLATE SALT BRIDGE; RING CURRENT MODEL; NMR-SPECTRA; ZINC-PORPHYRINS; ENERGY-TRANSFER; SYSTEMS; PAIR; PHOTOSYNTHESIS; SUBSTITUENT;

机译：光诱导电子转移;羧酸盐桥;环流模型;NMR谱;锌卟啉;能量转移;系统;对;光合作用;取代基;

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机译：超分子功能组装的模块化方法：供体-受体-受体三元复合物的表征
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Modular approach toward supramolecular functional assemblies: Characterization of donor-spacer-acceptor ternary complexes

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