Metalloporphyrin-Based Magnetic Materials

该奖项由犹他大学化学部门的先进材料项目和材料研究部门的固态化学项目颁发，以支持Joel S. Miller的研究。本研究将探索金属卟啉/四氰乙烯（TCNE）基磁性材料的结构-功能关系，以发现具有高临界温度、磁饱和矩和环境稳定性的新型有机基磁体。研究重点包括：自旋在卟啉配体外围的作用、共价键和超分子氢键的作用、基于除TCNE以外的阴离子自由基受体的新型磁体的合成、与其他高自旋金属离子的卟啉配合物的合成、锰卟啉/TCNE配合物的光磁性效应以及铁磁性对压力的依赖性。协作物理测量和计算研究将补充研究的综合方面。有机基磁体易于处理，并提供了必要的合成多样性，以设计各种具有可预测和可控性能的磁性材料。这项研究将有助于确定新一代磁铁在电子和光子器件中的潜在应用的结构-性能关系。

This award is made by the Advanced Materials Program in the Chemistry Division and the Solid State Chemistry Program in the Division of Materials Research to the University of Utah in support of the research of Joel S. Miller. The research will explore structure- function relationships in metalloporphyrin/tetracyanoethylene(TCNE)-based magnetic materials with the goal of discovering new organic based magnets with high critical temperatures, magnetic saturation moments and ambient stability. Research thrusts which will be emphasized are the role of spins on the periphery of the porphyrin ligand, effect of covalent bonding and supramolecular hydrogen bonding, synthesis of new magnets based on anion-radical acceptors other than TCNE, synthesis of porphyrin complexes with other high spin metal ions, photomagnetic effects in manganese porphyrin/TCNE complexes, and the pressure dependence of ferromagnetism on pressure. Collaborative physical measurements and computational studies will supplement the synthetic aspects of the research. Organic based magnets are tractable and offer the synthetic diversity necessary to design a variety of magnetic materials with predictable and controllable properties. This research will help define structure-performance relationships for a new generation of magnets with potential applications in electronic and photonic devices.