Ligand Design for Molecular and Supramolecular Control of the Structures of Metal Complexes: Investigations of Unusual Magnetic Properties

化学合成（SYN）项目的这一奖项支持南卡罗来纳大学Daniel L. Reger教授对第一排过渡金属配合物的制备和表征进行基础研究，这些配合物被设计成具有新颖的结构，产生不同寻常的有用性质。设计的配体（结合金属的基团）使两种金属接近，通过小基团(X)促进两种金属的桥接。这些M-X-M系统显示出独特的磁性和光学性质，可以通过选择金属和X基团来控制。连接配体也包含设计功能，促进强但间接的相互作用，产生新的结构和键排列，测试这些重要的间接相互作用如何影响物理性质。特别重要的是配体具有具有特定方向的骨架，可以将配体的特殊特性“投射”或“放大”到金属配合物的结构上。从事该项目的研究生为学术职位以及工业和政府就业进行培训。与HBCU两所学院的教师和本科生开展外展合作，促进少数民族学生的科学发展。这种化学的发展在不对称催化、非线性光学和传感应用等不同领域都很重要。

This award in the Chemical Synthesis (SYN) program supports work by Professor Daniel L. Reger at the University of South Carolina to carry out fundamental studies on the preparation and characterization of first row transition metal complexes that are designed to have novel structures that produce unusual and useful properties. Designed ligands (groups that bind metals) bring two metals into proximity promoting bridging of the two metals by small groups (X). These M-X-M systems show unique magnetic and optical properties that can be controlled by the choice of metal and X group. Linking ligands that also contain designed functionalities that promote strong, but indirect, interactions yield new structural and bonding arrangements that test how these important indirect interactions impact on physical properties. Particularly important are ligands that have backbones with specific orientations that "project" or "amplify" the special characteristics of the ligands on to the structures of metal complexes.Graduate students working on the project train for academic positions as well as industry and government employment. Outreach collaborations with faculty and undergraduate students at two HBCU institutions nurture scientific development of minority students. Development of this chemistry is important in such diverse areas as asymmetric catalysis, non-linear optics, and sensing applications.