Hierarchical Self-Organization of Functional Materials

功能材料的分层自组织

• 批准号: 0847997
• 负责人: Charles Drain
• 金额: $ 54.85万
• 依托单位: CUNY Hunter College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847997&HistoricalAwards=false
• 关键词: Hierarchical; Self; Organization; Functional; Materials

The Organic and Macromolecular Chemistry Program in the Chemistry Division at the National Science Foundation supports Professor Charles M. Drain of the City University of New York (CUNY) Hunter College for a research project that will continue pushing the limits of self-assembly and self-organization to create functional photonic materials and prototypical devices that contain various porphyrinoids and other highly stable dyes. Porphyrinoids such as porphyrins, phthalocyanines, and porphyrazines are a class of remarkably robust dyes that have a broad range of chemical, physical, and photonic properties. The range of properties is significantly expanded by the binding of metal ions and by peripheral substitution. One of the goals of the research is to understand fundamental principles of supramolecular chemistry related to the hierarchical organization of molecules and atoms. Conceptually, there are four levels describing the organization of matter: (1) molecular structure, (2) supramolecular structure, (3) self-organization into solid-state materials and (4) self-organization of these materials onto surfaces in devices, which includes interconnections to the macroscopic world. The correlation of hierarchical structure with photonic properties will lead to new design principles and materials with enhanced functions. These results will lead to a better understanding of hierarchical organization in natural systems, and provide a roadmap to the construction of other complex self-organized materials with designed functionality. The systematic comparison of the photonic properties of component molecules, discrete self-assembled arrays and self-organized materials, is an explicit part of the proposal. Though every supramolecular design may not result in the predicted structures, unexpected results can be very informative in terms of understanding intermolecular interactions and the response of these materials to environment changes and deposition onto surfaces. The results of the proposed research will significantly increase the repertoire of self-assembly/organization concepts that underpin the design of hierarchical functional materials for an array of applications beyond photonic materials.Broader impacts of the proposed research include the training of a diverse population of students. Because of Professor Drain's vigorous, proactive recruiting of a diverse population of students, his lab consists of approximately 50% women and 50% minorities in STEM areas. Former minority undergraduates are now in Ph.D. programs or have graduated from universities such as Rockefeller, Berkeley, Columbia, and Cornell. Thus, the education and training of women and underrepresented minorities in STEM continues to be a hallmark of Professor Drain's research program. A new Analytical chemistry lab at Hunter College is proposed (30-40 majors per year will take the course) that will focus on state of the art instrumentation and assays that are specifically derived from the prior NSF-sponsored research on porphyrin materials.

美国国家科学基金会化学部的有机和高分子化学项目支持查尔斯M。纽约市立大学（CUNY）亨特学院的一个研究项目，该项目将继续推动自组装和自组织的极限，以创建包含各种卟啉和其他高度稳定染料的功能性光子材料和原型设备。卟啉类化合物如卟啉、酞菁和四氮杂卟啉是一类非常稳健的染料，其具有广泛的化学、物理和光子性质。通过金属离子的结合和外围取代，性质的范围显著扩大。该研究的目标之一是了解与分子和原子的分层组织相关的超分子化学的基本原理。从概念上讲，有四个层次描述物质的组织：（1）分子结构，（2）超分子结构，（3）自组织成固态材料和（4）这些材料在设备表面上的自组织，其中包括与宏观世界的互连。分级结构与光子特性的关联将导致新的设计原理和具有增强功能的材料。这些结果将有助于更好地理解自然系统中的层次组织，并为构建具有设计功能的其他复杂自组织材料提供路线图。系统地比较了组成分子、离散自组装阵列和自组织材料的光子特性，这是该提案的一个明确部分。虽然每个超分子设计可能不会导致预测的结构，但意外的结果在理解分子间相互作用以及这些材料对环境变化和沉积到表面上的响应方面可能非常有用。拟议的研究的结果将显着增加剧目的自组装/组织的概念，支持层次功能材料的设计，为一系列的应用程序超越光子materials.Broader的影响，拟议的研究包括不同的学生群体的培训。由于Drain教授积极主动地招募了各种各样的学生，他的实验室由大约50%的女性和50%的STEM领域的少数民族组成。以前的少数民族大学生现在是博士。课程或毕业于洛克菲勒、伯克利、哥伦比亚和康奈尔等大学。因此，教育和培训妇女和代表性不足的少数民族在干继续是教授漏的研究计划的一个标志。提议在亨特学院建立一个新的分析化学实验室（每年将有30-40名专业人员参加该课程），该实验室将专注于最先进的仪器和分析，这些仪器和分析是专门从之前NSF赞助的卟啉材料研究中获得的。