trbx ~&elf. If thus is so, rt extends the range of surfaceenhanced techmques to msoluble as well as soluble speties. in any event, there is no evidence of chermcai reactron on pressing the discs, and they are robust and easily handled so that hip-resolutton Raman spectra of insoluble copper phthaloc
Proton exchange in stable nitroxyl radicals of the imidazoline and imidazolidine series
β Scribed by V.V Khramtsov; L.M Weiner; S.I Eremenko; O.I Belchenko; P.V Schastnev; I.A Grigor'ev; V.A Reznikov
- Publisher
- Elsevier Science
- Year
- 1985
- Weight
- 708 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
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The mflucnce of thepH on EPR spectra of nltroxyl radicals was studled Ilypcrfinc sphttlnf constants (ON) sndg factors differ m protonsted (RH') and non-protonakd (R) forms. Proton exchange rates bctwccn R and RH+arc fast or SIOW on the EPR time scale. dcpcndmg on the rachnlpK, These rxhals may be us
## Abstract Lowβmolecular weight model compounds (MCs) for Nafion membranes used in fuel cells were exposed at 300 K to ^Β·^OH radicals produced by UV irradiation of aqueous H~2~O~2~ solutions. The MCs contained fluorinated and partially fluorinated groups terminated by sulphonic or carboxylic acid