SGER: Highly Functionalized Highly Symmetrical Nano Building Blocks From Silsesquioxanes

SGER：来自倍半硅氧烷的高度功能化、高度对称的纳米结构单元

• 批准号: 0740108
• 负责人: Richard Laine
• 金额: $ 20万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2009-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0740108&HistoricalAwards=false
• 关键词: SGER; Highly; Functionalized; Symmetrical; Nano

With this award, the Organic and Macromolecular Chemistry Program supports Proferssor Richard Laine of the University of Michigan whose research will synthesize easily accessible cubic structures with organic moities to target well-defined octafunctional 3-D conjugated molecules with cubic symmetry. These materials because of their 3-D shape, high solubility, high temperature stability, ease of synthesis and purification, potential for multiple functionalization of phenyl groups, appear to offer opportunities to: (1) develop new methods of assembling 2- or 3-D structures with extraordinary densities of functional groups nm by nm, (2) design families of materials with numerous combinations of functional groups, and (3) the potential for 3-D conjugation of excited states for semiconducting, electronic and photonic applications. The approach will be stepwise, building on stilbene incorporation in the cube structure to introduce traditional donor and acceptor (DA) substituents to determine the feasibility of observing internal charge transfer behavior through the apparent low lying LUMO. Second will be the introduction of more highly conjugated substituents at all cube vertices and at the internal double bond. Later, still more complex conjugated systems will be added. The overall objective will be to not only lower the band gap but also to create 3-D pi-pi and/or DA interactions between these highly symmetrical cubes. Specifically, the work is directed toward tailoring materials for organic electronics with the hope that these materials will exhibit the equivalent of 3-D conjugation in the excited state, thereby offering the potential to revolutionize organic electronics,This award from the Organic and Macromolecular Chemistry Program supports Proferssor Richard Laine of the University of Michigan whose research will involve collaborations with five other groups at the University of Michigan. These collaborations will allow Professor Laine to assess the utility of these compounds for various organic electronic applications including OLEDs, white light, photovoltaics, and NLO applications and through modeling studies that map their photophysical and electronic properties as individual compounds and after assembly. More broadly, the results of this study would be richly rewarding in terms of new materials that are easily synthesized, purified, and exceptionally robust and that permit 3-D assembly. Professor Laine and his group annually hosts and trains 4-5 undergraduate and 2 high school summer student researchers from local high schools including under-represented minorities, with 50% of these being women scholars.

有了这个奖项，有机和大分子化学计划支持密歇根大学的Richard Laine教授，他的研究将合成具有有机部分的易于获得的立方结构，以目标明确的八官能三维共轭分子与立方对称性。这些材料由于其3-D形状、高溶解度、高温稳定性、易于合成和纯化、苯基的多官能化潜力，似乎提供了以下机会：（1）开发组装具有非常高密度的官能团的2-或3-D结构的新方法，（2）设计具有多种官能团组合的材料族，以及（3）激发态的三维共轭在半导体、电子和光子应用中的潜力。该方法将是逐步的，基于在立方体结构中掺入芪来引入传统的供体和受体（DA）取代基，以确定通过表观低位LUMO观察内部电荷转移行为的可行性。其次是在所有立方体顶点和内部双键处引入更高度共轭的取代基。稍后，将添加更复杂的共轭系统。总体目标将不仅是降低带隙，而且在这些高度对称的立方体之间创建3-D π-π和/或DA相互作用。具体来说，这项工作是针对有机电子材料的定制，希望这些材料在激发态下表现出相当于3-D共轭的特性，从而提供了彻底改变有机电子的潜力，该奖项来自有机和高分子化学计划，支持密歇根大学的Richard Laine教授，他的研究将涉及与该大学其他五个小组的合作密歇根州。这些合作将使莱恩教授评估这些化合物的效用，用于各种有机电子应用，包括OLED，白色光，photopolics和NLO应用，并通过建模研究，映射其物理和电子特性作为单个化合物和组装后。更广泛地说，这项研究的结果将在新材料方面获得丰厚的回报，这些材料易于合成，纯化，非常坚固，并且允许3D组装。莱恩教授和他的小组每年举办和培训4-5名本科生和2名高中暑期学生研究人员从当地高中，包括代表性不足的少数民族，其中50%是女性学者。