Muonium addition to DMPO and PBN sorbed in silica-gel

Nitroxyl radicals were formed by adding the light hydrogen isotope, muonium to the spin traps DMPO (5,5-dimethyl-1-pyrroline-N-oxide) and PBN (N-tert-butyl-alpha-phenylnitrone) sorbed as 30 wt% ethanol solutions in silica-gel; evidence is presented for a specific hydrogen-bonded interaction between...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2002-05 (10), p.1092-1093
Main Authors: Rhodes, Christopher J, Reid, Ivan D, Zimmermann, Ulrich
Format: Article
Language:English
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Summary:Nitroxyl radicals were formed by adding the light hydrogen isotope, muonium to the spin traps DMPO (5,5-dimethyl-1-pyrroline-N-oxide) and PBN (N-tert-butyl-alpha-phenylnitrone) sorbed as 30 wt% ethanol solutions in silica-gel; evidence is presented for a specific hydrogen-bonded interaction between the DMPO adduct and the silica surface; longitudinal-field muon spin relaxation measurements (LF-MuSRx) were performed which identified two distinct motional regimes in both samples.
ISSN:1359-7345
1364-548X
DOI:10.1039/b202302b