Abstract
Two kinds of the phosphorus-centered radicals produced from hydrogen atom abstraction by 2i2-diphenyl-l-picrylhydrazyl(DPPH) were trapped by Af-/ert-butyl-a-phenylnitrone(PBN) and 5,5-dimethyl-l-pyrroline N-oxide (DMPO), and investigated by means of EPR spectroscopy. The spin adducts with a characteristic hyperfine coupling constant(hfcc) caused by a phosphorus atom were observed. Based on the hfcc values caused by the phosphorus and hydrogen atoms the conformational positions of the adducts trapped by PEN and DMPO are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 313-319 |
| Number of pages | 7 |
| Journal | Chemical Research in Chinese Universities |
| Volume | 16 |
| Issue number | 4 |
| Publication status | Published - Dec 1 1999 |
Keywords
- EPR
- Phosphorus-centered radical
- Spin trap
ASJC Scopus subject areas
- Chemistry(all)