The first purification and unequivocal characterization of the radical form of the carbon-centered quinone ketoxy radical adduct

We found, unexpectedly, that the radical form of the carbon-centered quinone ketoxy radical adduct with a recently developed spin-trapping agent BMPO can not only be directly detected and identified using HPLC/high resolution MS, but can also be isolated and purified using semi-preparative HPLC, ena...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2013-07, Vol.49 (57), p.6436
Main Authors: Huang, Chun-Hua, Shan, Guo-Qiang, Mao, Li, Kalyanaraman, Balaraman, Qin, Hao, Ren, Fu-Rong, Zhu, Ben-Zhan
Format: Article
Language:English
Subjects:
Carbon - chemistry
Chromatography, High Pressure Liquid
Cyclic N-Oxides - chemistry
Electron Spin Resonance Spectroscopy
Free Radicals - chemistry
Mass Spectrometry
Quinones - chemistry
Spin Trapping
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Summary:We found, unexpectedly, that the radical form of the carbon-centered quinone ketoxy radical adduct with a recently developed spin-trapping agent BMPO can not only be directly detected and identified using HPLC/high resolution MS, but can also be isolated and purified using semi-preparative HPLC, enabling direct observation of its clean 6-line ESR signal.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc42732c