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UTILITY TO DEVELOP SINGLE CRYSTAL W BAND EPR SPECTROMETRY AMETHYST

UTILITY TO DEVELOP SINGLE CRYSTAL W BAND EPR SPECTROMETRY AMETHYST
开发单晶 W 波段 EPR 光谱法紫水晶的实用性
批准号:
6120675
负责人:
John A Weil
金额:
$0.54万
依托单位国家:
美国
项目类别:
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-04-15 至 1999-11-30

项目摘要

项目成果

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中文摘要
翻译
研究紫水晶单晶中铁离子的项目, 尤其是检测/发现Fe(2+)和Fe(4+)的共振。1)行 制作了94.1 GHz EPR谱的位置角路线图 已知的Fe(3+)中心在石英中,使用先前测量的9.5 GHz 光谱。这些都是W波段必不可少的指导方针 工作。2)完成了主要成功的开发工作(月) (学会)生产直径0.7 mm的精密定向圆柱体 紫水晶。3)室温下的初步W波段光谱 显示存在几个Fe(3+)中心,另外还有一些 不明身份的中心。我们寻求获得使用W频带的经验 光谱学检测和研究Fe(4+)并传递这一经验 对金属蛋白中Fe(+4)位的表征。这是 一个正在进行的项目。
英文摘要
Project to study iron ions in amethyst single crystals, especially to detect/discover Fe(2+) and Fe(4+) resonances. 1) Line position angle roadmaps for 94.1 GHz EPR spectra were produced for all known Fe(3+) centres in -quartz, using 9.5 GHz previously measured spectra. These are serving as guidelines essential for the W-band work. 2) Major successful development work (months) was done to (learn to) produce 0.7mm diameter cylinders of carefully oriented amethyst crystals. 3) Preliminary W-band spectra at room temperature showed presence of several Fe(3+) centres, plus some as-yet unidentified centres. We seek to gain experience on use of W-band spectroscopy to detect and study Fe(4+) and transfer this experience to the characterization of Fe(+4) sites in metalloproteins. This is an ongoing project.
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UTILITY TO DEVELOP SINGLE CRYSTAL W BAND EPR SPECTROMETRY B DICOBALT DIOXYGEN
UTILITY TO DEVELOP SINGLE CRYSTAL W BAND EPR SPECTROMETRY: AMETHYST
UTILITY TO DEVELOP SINGLE CRYSTAL W BAND EPR SPECTROMETRY: B DICOBALT DIOXYGEN
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