Development of Unique Multitopic Ligands for the Syntheses of Highly Organized Multi-metallic Complexes

无机化学、生物无机化学和金属有机化学项目的这一奖项支持南卡罗来纳大学的Daniel Reger教授设计新型的多金属配位化合物，这些化合物在固态中具有高度有序的结构，并显示出不同寻常的电、光物理和磁性。这些络合物将使用一系列专门设计用于与不止一种金属键合的新配体来制备，并包含旨在支持超分子结构的官能团。新的主客体化学将以独特的三脚架配体如1，3，5-(CH3)3C6[CH2OCH2C(PZ)3]3(PZ=吡唑环)形成的组装为基础，以及基于二茂铁核心的半柔性性质的新的双位配体的金属络合物，如Fe[C5H4CH(PZ)2]2。将被研究的特别重要的系统是自旋交叉Fe(II)N6络合物，它是具有可切换结构域的络合物，为开发新型存储器件打开了新的可能性。新型的多金属配位化合物将被合成，这些化合物在固态中具有高度有序的结构，并显示出特殊的性质。这项研究将导致合成专门设计用于与多种金属键合的新配体，并发展对超分子结构与光学和磁性之间关系的日益增长的了解。这种材料可能通过形成新型存储器件的基础而具有显著的潜在影响。这项研究对培养不同教育水平的广泛培训的专业人才具有吸引力。事实上，国际和平协会有着多元化的人力资源和教育发展的传统。

This award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports Professor Daniel Reger at the University of South Carolina to design new types of multi-metallic coordination compounds that have highly organized structures in the solid state and exhibit unusual electrical, photophysical, and magnetic properties. These complexes will be prepared using a series of new ligands that are specifically designed to bond to more than one metal and contain functional groups designed to support supramolecular structures. New host/guest chemistry based on assemblies formed by unique tripodal ligands such as 1,3,5-(CH3)3C6[CH2OCH2C(pz)3]3 (pz=pyrazolyl ring), and metal complexes of new bitopic ligands, such as Fe[C5H4CH(pz)2]2, that are based on the semi-flexible nature of the ferrocene core, will be targeted. Particularly important systems that will be investigated are spin-crossover Fe(II)N6 complexes, which are complexes with switchable domains, that open new possibilities for the development of novel memory devices. New types of multi-metallic coordination compounds will be synthesized that have highly organized structures in the solid state and exhibit unusual properties. This research will lead to the syntheses of new ligands that are specifically designed to bond to more than one metal and to develop the growing knowledge of the relationship between supramolecular structures and optical and magnetic properties. Such materials may have a significant potential impact by forming the basis for novel memory devices. This research is attractive for cultivating broadly trained specialists at various educational levels. Indeed, the PI has a tradition of diverse human resource and education development.