Fractal NanoArchitectures: Design, Assembly and Properties

化学系的大分子、超分子和纳米化学项目支持乔治R. Newkome的阿克伦大学研究分形纳米和宏观尺度的分子（自相似组件在不同的大小尺度）的基础上，多组分，超分子，定向和自组装协议，依赖于三联吡啶-金属-三联吡啶积木连接。 将位点特异性的多个金属中心结合到预先设计的分子阵列或网络中的能力提供了一种微调分子分形的所需物理和化学性质的方法。 在分形框架内引入和交换不同金属的可能性，无论是在建造过程中还是建造之后，都将促进对精确设计的多金属合奏的研究，这些合奏在分子电子学，自修复框架和纳米级天线结合方面具有分支。 还设想了基于精确图案的分子结构。 使用这些带电的，多金属晶格复合纤维的形成，交替带电物种的基础上，将越来越多的更高世代的分形材料进行研究。 物理性质和预期用途涉及能量储存和释放、分子电子器件、数据存储、太阳能电池纳米元件、传感器和光学显示能力、分子天线和超材料。（称为“分形”）保持在一起的金属胶样的相互作用将被组装，基于它们的组分相互作用，如它们的潜力，适合，包装，并以有序的方式进行交往。 这将导致用于电子设备和组件的新型大分子，例如用于能量存储的电池，电路中的开关和微型通信设备中的天线。 教育机会产生于对各级学术水平的学生和科学家的培训和发展。 通过在区域、国家和国际公立和私立学校、大学和会议上定期发表演讲，促进教育推广。 工业和国际合作继续通过人员和信息交流加强这一研究。

The Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division supports Prof. George R. Newkome of The University of Akron to investigate fractal nano- and macroscale molecules (self-similar components at differing size scales) based on multicomponent, supramolecular, directed and self-assembly protocols that rely on terpyridine-metal-terpyridine building block connectivity. The ability to incorporate site-specific, multiple metal centers into a predesigned molecular array or network affords a method to fine-tune the desired physical and chemical properties of the molecular fractals. The potential to introduce and exchange differing metals within the fractal framework, either during or after construction, will facilitate the study of precisely designed multimetal ensembles that have ramifications in molecular electronics, self-repairing frameworks, and antenna incorporation at the nanoscopic level. Precise pattern-based molecular structures are also envisioned. Use of these charged, polymetal lattices for composite fiber formation, based on alternating charged species will be investigated with increasingly higher generation fractal-based materials. Physical properties and uses envisioned involve energy storage and release, molecular electronic devices, data storage, solar cell nanocomponents, sensor and optical display capabilities, molecular antennas, and metamaterials.New materials comprised of repeating similar shapes of differing sizes (termed "fractal") held together by metal glue-like interactions will be assembled, based on their components interactions, such as their potential to fit, pack, and associate in an orderly manner. This will lead to new types of macromolecules for use in electronic devices and components, such as with batteries for energy storage, switches in electric circuits, and antennas in miniature communication devices. Educational opportunities arise from the training and development of students and scientists at all academic levels. Educational outreach is promoted through regular presentations at regional, national and international public and private schools, universities, and conferences. Industrial and international collaborations continue to enhance this research through personnel and information exchange.