Synthesis and Organization of Electronic Molecular and Polymeric Materials

技术概述：该计划由DMR固态和材料化学计划以及CHE大分子，超分子和纳米化学计划提供支持。这一努力的方向是功能性有机材料的合成及其组装方法。具体的主题包括液晶材料的组织使用新的分子形状，如刚性三甲烯单位，以提高液晶排列。类似的组织力可以应用于表面，研究重点是由特定光化学反应引起的大型骨骼重排，将用于创建特定的表面排列。在分子半导体领域，将研究长程序和短程序对电子输运性质的作用。在器件中，不同的全局排列试图确定是否结合Pt dz2和p轨道相互作用可以导致取向软晶体相的高迁移率。其他研究将集中在液晶中的开壳有机材料上。分子内强电子耦合的多自由基将被询问，以检查磁有序是否可以在电子传递（即磁电阻）中发挥作用。复杂的多环碳网络材料将使用Diels Alder反应合成，以产生含有苯基单元的更高的丙烯酸结构和碳纳米管的合成。非技术概述：分子基电子材料及其相关技术正迅速成为日常生活的一部分。目前，这些技术的影响受到材料本身性能的限制。这项研究将推动新的设计范式，寻求生产具有增强电子传输的材料。它将进一步开发具有新型电子相互作用的材料，这种相互作用可以导致新的物理现象，从而成为未来技术的基础。在这方面受过培训的学生将准备为这个新兴行业做出贡献。此外，PI将继续努力，通过继续促进和组织旨在赋予弱势美国人科学事业权力的研讨会，在劳动力中创造更高的多样性。

TECHNICAL SUMMARY: This program is supported by the DMR Solid State and Materials Chemistry Program and the CHE Macromolecular, Supramolecular, and Nanochemistry Program.This effort is directed at the synthesis of functional organic materials and methods for their assembly. Specific themes include the organization of liquid crystalline materials using novel molecular shapes such as rigid triptycene units to enhance liquid crystal alignment. Similar organizational forces can be applied at surfaces and investigations focusing on large skeletal rearrangements caused by specific photochemical reactions will be used to create specific surface alignments. In the area of molecular semiconductors, investigations of the role of long-range and short-range order on the electronic transport properties will be performed. Different global alignments in devices seek to determine if combined Pt dz2 and p-orbital interactions can lead to high mobility in oriented soft crystal phases. Other investigations will focus on open-shell organic materials in liquid crystals. Polyradicals that are strongly electronically coupled intramolecularly will be interrogated to examine if magnetic ordering can play a role in electron transport (i.e. magnetoresistance). Complex polycyclic carbon network materials will be synthesized using Diels Alder reactions in an effort to create higher acene structures containing phenylene units and the synthesis of carbon nanotubes.NON-TECHNICAL SUMMARY: Molecular based electronic materials and associated technology is rapidly becoming part of everyday life. Presently, the impact of these technologies is limited by the intrinsic performance of the materials. This research will push forward new design paradigms that seek to produce materials with enhanced electronic transport. It will further develop materials having new types of electronic interactions that can lead to new physical phenomena that can be the basis of future technologies. The students trained in this effort will be prepared to contribute to this emerging industry. In addition, the PI will continue his efforts to create higher diversity in the workforce by continuing to promote and organize workshops that seek to empower the scientific careers of disadvantaged Americans.