权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Metalloporphyrin-Based Magnetic Materials

金属卟啉基磁性材料

基本信息

批准号：
0110685
负责人：
Joel Miller
金额：
$ 45.3万
依托单位：
University of Utah
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2001
资助国家：
美国
起止时间：
2001-08-15 至 2005-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0110685&HistoricalAwards=false
关键词：
Metalloporphyrin Based Magnetic Materials

项目摘要

This award, made to the University of Utah in support of Professor Joel Miller's research is supported by the Advanced Materials Program in the Chemistry Division. The research deals with the design, synthesis, characterization and properties of metalloporphyrin-based magnetic materials.The broad goals of the research are to understand the fundamental science that governs behavior in organic-based magnets, to identify new magnetic phenomena, and to to make organic-based magnets with enhanced and controllable critical temperatures and coercive fields. The research will elucidate structure-function relationships in the one dimensional manganeseporphyrin-tetracyanoethylene system including the role of the metal atoms, the pressure dependence, the photomagnetic response and the role of spins on the periphery of the porphyrin ligand. The one dimensional systems will be extended to two and three dimensions by covalent bonding and by supramolecular hydrogen bonded manganotetraphenylporphyrins. New types of magnets will be prepared based on new classes of radical-ion acceptors capable of binding two manganese moieties. A feature of the research will be extensive collaborations with experts for structural and performance measurements and for computational modeling.This research will provide a fundamental understanding of magnetic behavior in molecular and supramolecular organic magnets as well as provide more temperature-stable, higher field magnets. Soluble molecular magnets will advance thin film magneto-optical applications. Collaborations with international chemists and physicists will provide strong interdisciplinary training for students.

这个奖项，作出了犹他州的大学，以支持教授乔尔米勒的研究是由先进材料计划在化学司的支持。该研究涉及金属卟啉基磁性材料的设计、合成、表征和性能，其广泛的研究目标是了解控制有机基磁体行为的基础科学，识别新的磁性现象，并使有机基磁体具有增强和可控的临界温度和矫顽场。本研究将阐明一维锰卟啉-四氰基乙烯体系的结构-功能关系，包括金属原子的作用、压力依赖性、光磁响应和卟啉配体周围自旋的作用。通过共价键和超分子氢键锰四苯基卟啉将一维体系扩展到二维和三维。新型磁铁将基于能够结合两个锰部分的新型自由基离子受体来制备。该研究的一个特点是与专家进行广泛的合作，进行结构和性能测量以及计算建模。这项研究将提供对分子和超分子有机磁体磁行为的基本理解，并提供更温度稳定的高磁场磁体。可溶性分子磁体将促进薄膜磁光应用。与国际化学家和物理学家的合作将为学生提供强大的跨学科培训。