Organometallic polymers and assemblies towards photonic materials and biomimicry

本提案的重点是制备新的光子材料。光子这个词是指利用光的材料。它们的性质直接关系到固态性质和形态，以及分子间的相互作用。现代光子器件的设计越来越多地涉及到聚合物，特别是有机导电聚合物的使用。另一方面，配位和有机金属聚合物的领域目前正在迅速扩大。它们在光子材料中潜在应用的制备仍有待进行。事实上，这还完全没有被探索过。本研究计划展示了5个主题（1-通过金属-金属键的光诱导能量转移，刚性棒共轭聚合物中的2天线效应，3-新型金属-金属键含聚合物，4-电活性可逆组装，5-刚性一维聚合物的超分子发色团排列）。在主链中出现M-M键的聚合物很少，加上适当的片段，就有可能制备出线性共轭的共轭聚合物。为了测试M-M键的存在是否是一种有效的导电或能量传导装置，将通过在链中添加太阳能收集碎片来制备改性导电线性聚合物。这种现象在植物和光细菌中被称为天线效应，它们拥有更复杂的装置。为了控制光学特性，如发光，“分子开关”将被设计成使用电诱导主客体过程，通过非常小的电压变化来控制。无电时，设备关闭（不发光），反之，设备打开。最后，将设计一种基于刚性碎片自动组装的“定制”1-D配位聚合物的新概念，该聚合物可以以独特的方式结合。这个简单的策略将导致聚合物的分支片段将被放置在一个重复的和空间组织良好的方式。

This proposal focuses on the preparation of new photonic materials. The word photonic means materials that use light. Their properties are directly related to solid-state properties and morphology, as well as intermolecular interactions. The design of photonic modern photonic devices involves more and more the use of polymer, notably organic of conducting polymers. On the other hand, the area of coordination and organometallic polymers is currently expanding at a fast rate. Their preparation for potential use in photonic materials remains to be performed. In fact, this is still totally unexplored. This research program exhibits 5 themes (1- Photo-induced energy transfer through metal-metal bond, 2-antenna effect in rigid rod conjugated polymers, 3- new metal-metal bond-containing polymers, 4- electro-active reversible assembly, and 5- supramolecular chromophore allignment from rigid unidimensional polymers). Few polymers exhibiting M-M bond in the backbone exits, and with the appropriate fragments, it is possible to prepare linear conjugated conjugated polymers. Modified conducting linear polymers will be prepared by adding solar harvesting fragments in the chains in order to test whether the presence of M-M bond is an efficient device to conduct electricity or energy. This phenomenon is called antenna effect in plants and photo-bacteria, which possess more complex devices. In order to control the optical properties, such as luminescence, "molecular switches" will be designed using an electro-induced host-guest process controlled with a very small change in voltage. In the absence of electricity, the device is off (no luminescence), and inversely, the device is on. Finally, a new concept for the preparation of "custom made" 1-D coordination polymers based on auto-assembling of rigid fragments that can bind in a unique way, will be designed. This simple strategy will lead to polymers where branched fragments will be placed in a repetitive and spacially well-organized manner.