MRI: Aquisition of an EPR Spectrometer

该奖项由化学和主要研究仪器（MRI）计划的部门共同资助，来自芝加哥洛约拉大学的Richard Holz教授将获得一台电子顺磁共振光谱仪，该光谱仪配备有低温液氦能力和X波段腔，可在垂直和平行模式下运行。该提案旨在加强各级的研究培训和教育，特别是在研究领域，如金属水解酶和金属水合酶的研究，生物学相关的金属中心，ADP葡萄糖焦磷酸化酶双核金属结合位点的催化作用，氨肽酶P双核活性位点的电子和催化特性，Mn（II）和二价VO金属取代的鸟嘌呤核苷酸结合蛋白α亚基衍生物和铜，锌超氧化物歧化酶和应用的X波段EPR在低温下。EPR光谱仪产生的几何和电子结构的详细信息，分子和固态材料。它也可用于获得有关自由基寿命的信息，这些自由基是参与有价值的化学转化以及病理性肿瘤生长起始的短寿命、高反应性物种。这些研究将影响许多领域，从无机和有机分子的合成到新固态材料的开发，再到生物学化合物。从正在进行的研究启发的例子，这个工具将是在本科和研究生水平的研究和教学的一个组成部分。

With this award, co-funded by the Division of Chemistry and the Major Research Instrumentation (MRI) program, Professor Richard Holz from Loyola University of Chicago will acquire an electron paramagnetic resonance spectrometer equipped with low temperature liquid helium capabilities and an X band cavity operational in both perpendicular and parallel modes. The proposal is aimed at enhancing research training and education at all levels, especially in areas of study such as investigations of metallohydrolases and metallohydratases, biologically relevant metal centers, catalytic role of the dinuclear metal binding site in ADP glucose pyrophosphorylase, electronic and catalytic properties of the dinuclear active site of Aminopeptidase P, Mn(II) and divalent VO metal substituted derivatives of alpha subunits of guanine nucleotide binding proteins and copper, zinc superoxide dismutase and applications of X band EPR at low temperatures.An EPR spectrometer yields detailed information on the geometric and electronic structure of molecular and solid state materials. It may also be used to obtain information about the lifetimes of free radicals, short-lived, highly reactive species involved in valuable chemical transformations as well as the initiation of pathological tumor growth. These studies will impact a number of areas, from the synthesis of inorganic and organic molecules to the development of new solid state materials to compounds of biological interest. Employing examples inspired from ongoing research, this instrument will be an integral part of research and teaching at the undergraduate and graduate levels.