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一种新型功能化双自由基的合成及EPR表征 被引量：1

Synthesis and EPR Characterization of a Novel Functional Biradical
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摘要 新开发的双自由基(TN3)由全取代三苯甲基自由基(trityl)和氮氧自由基两部分组成.TN3的室温EPR谱图由4条不对称的宽谱线组成,具有典型的双自由基特征.以抗坏血酸作为模型化合物发现该双自由基能用来同时检测体系的氧化还原态和氧气浓度. A biradical TN3 was synthesized, which is composed of a fully substituted tri phenylmethyl radical and a nitroxide. EPR spectrum of TN3 at room temperature con sists of an asymmetric quartet broad lines, suggesting its typical biradical structure. Using ascorbate as a model compound, we proved that TN3 can be used to evaluate red ox status and oxygen level simultaneously.
作者 刘阳平 Jay L.Zweier
机构地区 Center for Biomedical EPR Spectroscopy and Imaging
出处 《波谱学杂志》 CAS CSCD 北大核心 2010年第1期95-102,共8页 Chinese Journal of Magnetic Resonance
基金 National Institutes of Health grants(HL38324,EB0890 and EB4900)
关键词 电子顺磁共振(EPR) 双自由基 三苯甲基自由基 氮氧自由基 氧化还原态 氧气 EPR, biradical, trityl, nitroxide, redox status, oxygen
分类号 O482.53 [理学—固体物理]
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参考文献12

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波谱学杂志
2010年 第1期

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