Hierarchical Self-organization of Cyclic Chromophore Arrays for Artificial Light Harvesting

用于人工光采集的循环发色团阵列的分层自组织

• 批准号: 19554624
• 负责人: Professor Dr. Jürgen Köhler
• 金额: --
• 依托单位: Institut für Organische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/19554624?language=en
• 关键词: Hierarchical; Self; organization; Cyclic; Chromophore; Hierarchical; Self; organization; Cyclic; Chromophore

In the light harvesting system of purple bacteria hundreds of chromophores are hierarchically organized in cyclic arrays within a 2D membrane. In this project we aim to construct a similar but fully artificial system based on perylene bisimide dyes that are first organized in trimers to provide metallacycles containing three perylene bisimide and up to twelve additional antenna dyes. The optical and photophysical properties of these supramolecular dye assemblies are investigated by UV/Vis and fluorescence spectroscopy and, in particular, by single-molecule spectroscopy. In the subsequent step these trimeric units are self-assembled on surfaces to give 2D patterns of interacting ultichromophoric subunits.

在紫色细菌的光收集系统中，数百个发色团在2D膜内的循环阵列中进行了层次组织。在这个项目中，我们旨在基于基于双二酰亚胺染料的类似但完全人造的系统，该系统首先在三聚体中组织起来，以提供含有三个双二酰亚胺和多达十二种额外天线染料的金属囊。这些超分子染料组件的光学和光物理特性通过紫外线和荧光光谱研究，尤其是单分子光谱法研究了。在随后的步骤中，这些三聚单元是在表面上进行自组装的，以提供相互作用的最终粒细胞亚基的2D模式。