CAREER: The Design, Synthesis and Study of Electro-active Materials Based on Stacked Polyfluorens

职业：基于堆叠聚芴的电活性材料的设计、合成和研究

• 批准号: 0346810
• 负责人: Rajendra Rathore
• 金额: $ 57.56万
• 依托单位: Marquette University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-15 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0346810&HistoricalAwards=false
• 关键词: CAREER; Design; Synthesis; Study; Electro

Professor Rajendra Rathore of the Department of Chemistry at Marquette University is supported by the Organic and Macromolecular Chemistry Program to perform research that integrates the disciplines of synthetic organic chemistry, molecular recognition, and material science with the aim of studying and exploiting new cofacially-stacked benzenoid structures that can be potentially utilized for the development of various electronic and optoelectronic devices in the emerging field of nanotechnology. In his proposal, he has outlined the design and synthesis of a variety of new cofacially-stacked benzenoid structures bearing multiple redox-active chromophores for the preparation of (advanced) nanomaterials for practical usage. Some of the examples include: suitably tailored redox-active polyaromatic hydrocarbons for self assembly, cofacially-stacked (poly)stilbenoid hydrocarbons, and (poly)fluorene derivatives for the preparation of wire-like materials. He will demonstrate the functioning of various covalently linked polychromophoric molecules with cofacially-stacked benzenoid spacers for the potential utilization for the design and construction of molecular wires that will find widespread applications in the area of molecular electronics. The study of the proposed novel molecules, using various spectroscopic techniques including time-resolved spectroscopy, will expand the understanding of the nature of through-space and through-bond electronic interactions between various organic redox centers linked via cofacially-stacked benzenoid spacers. With the support of the Organic and Macromolecular Chemistry Program, Professor Rathore will design and synthesize new cofacially-stacked benzenoid structures. This is an important step that will allow the development of a variety of new molecular and supramolecular nanostructures in order to achieve photoinduced charge separation over long distances and with high quantum efficiency. His work will create exciting challenges for future research. Moreover, these fundamental studies of the electron transport through cofacially-stacked p-systems will also be highly relevant to the understanding of the (controversial) electron-transport phenomenon observed in DNA through p-stacked bases. Ultimately, the easy fabrication of organic molecules and the high degree of synthetic flexibility in the preparation of these molecular assemblies will allow their ready modification and eventual incorporation into polymers and thin films for potential practical applications in the field of nanotechnology. Finally, the research proposed herein will also promote multidisciplinary research programs that offer high quality training and research facilities for both undergraduate and graduate students within the university.

马奎特大学化学系的Rajendra Rathore教授得到有机和高分子化学项目的支持，进行整合合成有机化学，分子识别，和材料科学，目的是研究和开发新的表面-堆叠的苯型结构，其可潜在地用于新兴领域中的各种电子和光电子器件的开发纳米技术。在他的提案中，他概述了各种新的共面堆叠的苯型结构的设计和合成，这些结构具有多种氧化还原活性发色团，用于制备用于实际用途的（高级）纳米材料。其中一些例子包括：用于自组装的合适定制的氧化还原活性聚芳族烃、共面堆叠的（聚）芪类烃和用于制备线状材料的（聚）芴衍生物。他将展示各种共价连接的polychromophoric分子与cofacially-stacked benzenoid间隔的功能，用于分子线的设计和构建，将在分子电子学领域得到广泛应用。 所提出的新分子的研究，使用各种光谱技术，包括时间分辨光谱，将扩大通过空间和通过键的各种有机氧化还原中心之间的相互作用的性质的理解通过cofacially堆叠苯型间隔连接。 在有机和大分子化学项目的支持下，Rathore教授将设计和合成新的共面堆叠苯型结构。这是一个重要的步骤，将允许开发各种新的分子和超分子纳米结构，以实现长距离和高量子效率的光致电荷分离。他的工作将为未来的研究带来令人兴奋的挑战。此外，这些通过共面堆叠的p-系统的电子传输的基础研究也将是高度相关的理解（有争议的）通过p-堆叠的碱基在DNA中观察到的电子传输现象。最终，有机分子的容易制造和这些分子组装体的制备中的高度合成灵活性将允许它们容易地修改并最终并入聚合物和薄膜中，以用于纳米技术领域中的潜在实际应用。最后，本文提出的研究还将促进多学科研究计划，为大学内的本科生和研究生提供高质量的培训和研究设施。