Developing Magnetic, Optical and Catalytic Applications of Metallacrowns

开发金属冠的磁、光学和催化应用

• 批准号: 1361779
• 负责人: Vincent Pecoraro
• 金额: $ 54万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1361779&HistoricalAwards=false
• 关键词: Developing; Magnetic; Optical; Catalytic; Applications

In this project funded by the Chemical Structure, Dynamic & Mechanism B Program of the Chemistry Division, Professor Vincent L. Pecoraro of the Department of Chemistry at the University of Michigan will develop new classes of metal complexes known as metallacrowns (containing lanthanides, transition and alkali earth metal ions) with interesting magnetic, luminescent and catalytic properties. The goal of this research is to exploit the characteristics of these metallacrowns to make complexes that will reduce the volume necessary to store information magnetically, that may be used as in vivo and in vitro luminescent agents for the imaging of chemical and biological samples and to prepare new multimetallic catalysts for fine chemicals synthesis. This work has been used for the development of laboratory undergraduate courses and likely will engage both undergraduate and possibly high school student participation. Also, this work is used as an example of creativity in scholarship in an undergraduate course on this subject at the University of Michigan.Metallacrowns (MC) are metallamacrocycles that have since garnered considerable attention for their structural versatility and metal-rich topology. Of particular interest is a vast series of 3d-4f heterometallic MCs that contain a transition metal ion and a lanthanide (Ln3+)ion. The main objectives of this proposal are to exploit the potential of this type of MC for applications in 1) molecular recognition and catalysis, 2) optical materials for luminescence and non-linear optics (NLO) and 3) molecular magnetism. Materials produced in this work have great potential to find commercial use. Substrate specific catalytic materials have potential to improve synthetic processes in the chemical industry, while MC research on magnetic materials has the potential to revolutionize data storage and enhance the understanding of magnetic phenomena. Lumiphores based on MCs containing Zn(II) or Ga(III) and Ln3+ ions are particularly promising for near-IR biological imaging and long range fiber optic telecommunications while application as NLO solids are also promising.

在这个由化学部门化学结构、动态和机制B项目资助的项目中，密歇根大学化学系的Vincent L. Pecoraro教授将开发被称为金属冠的新型金属配合物（包含镧系元素、过渡金属和碱土金属离子），这些金属配合物具有有趣的磁性、发光性和催化性。这项研究的目标是利用这些金属冠的特性来制造复合物，以减少磁性存储信息所需的体积，可以用作体内和体外发光剂，用于化学和生物样品的成像，并制备用于精细化学品合成的新型多金属催化剂。这项工作已被用于实验室本科课程的开发，可能会吸引本科生和高中生的参与。此外，在密歇根大学关于这一主题的本科课程中，这项工作被用作奖学金创造力的一个例子。金属冠（MC）是金属宏环，由于其结构的多功能性和富金属的拓扑结构而引起了相当大的关注。特别令人感兴趣的是含有过渡金属离子和镧系元素（Ln3+）离子的大量3d-4f异质金属mc。本提案的主要目标是开发这种类型的MC在以下方面的应用潜力：1)分子识别和催化；2)发光和非线性光学（NLO）光学材料；3)分子磁性。在这项工作中产生的材料有很大的潜力找到商业用途。基材特定的催化材料有可能改善化学工业的合成过程，而磁性材料的MC研究有可能彻底改变数据存储并增强对磁性现象的理解。基于含有Zn（II）或Ga（III）和Ln3+离子的MCs的发光手机在近红外生物成像和远程光纤通信方面特别有前景，同时作为NLO固体也很有前景。