ZFS-Related Paramagnetic Phenomena in NMR Spectroscopy

NMR 波谱学中与 ZFS 相关的顺磁现象

• 批准号: 9423351
• 负责人: Robert Sharp
• 金额: $ 30.1万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 1999-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423351&HistoricalAwards=false
• 关键词: ZFS; Related; Paramagnetic; Phenomena; NMR

In this project in the Experimental Physical Chemistry Program, Robert Sharp of The University of Michigan at Ann Arbor will study nuclear and electron spin relaxation phenomena of paramagnetic metal ions. Experimental and theoretical work will be conducted to obtain a better understanding of zero field splitting interactions and their effect on paramagnetic relaxation enhancements. A theoretical description of spin motion and spin relaxation phenomena in cases of very strong electron spin-lattice coupling will be developed, and experimental and theoretical studies of the spin relaxation properties of Heisenberg exchange-coupled polynuclear metal centers will be undertaken. These studies will provide information relating to the design of contrasting agents for Magnetic Resonance Imaging and structures of metallo-enzymes. Magnetic Resonance Imaging is a widely used diagnostic technique. In order to obtain the maximum resolution possible at low field strengths, an understanding of the contrast mechanisms is necessary. This research will provide information which will assist in the design of contrasting agents to enhance image quality and improve sensitivity.

在实验物理化学项目中，罗伯特· 密歇根大学安阿伯分校的夏普将研究核能和 顺磁性金属离子的电子自旋弛豫现象。 实验和理论工作将进行，以获得更好的 理解零场分裂相互作用及其对 顺磁弛豫增强。自旋的理论描述 极强电子的运动和自旋弛豫现象 自旋晶格耦合将发展，实验和理论 海森堡交换耦合自旋弛豫性质的研究 多核金属中心将进行。 这些研究将提供 磁性造影剂设计相关信息 金属酶的共振成像和结构。 磁共振成像是一种广泛使用的诊断技术。 在 为了在低场强下获得可能的最大分辨率， 需要理解对比机制。 本研究 将提供信息，这将有助于设计对比 试剂可增强图像质量并提高灵敏度。