Electron spin echo envelope modulation of trapped radicals in disordered systems: nitrogen modulation from isotopically substituted chlorophyll a cations

M. K. Bowman, J. R. Norris, M. C. Thurnauer, J. Warden, S. A. Dikanov, Yu D. Tsvetkov

Research output: Contribution to journalArticlepeer-review

Abstract

The electron spin echo envelope modulation of the chlorophyll a radical cation has been examined for radicals containing 14N and 15N. The modulation is found to be due primarily to the nitrogen nuclei in the heterocycle and the nuclear quadrupole interaction plays a large part in determining the modulation from 14N. The modulation from 15N allows limits to be set on the isotropic and anisotropic hyperfine interactions.

Original languageEnglish (US)
Pages (from-to)570-574
Number of pages5
JournalChemical Physics Letters
Volume55
Issue number3
DOIs
StatePublished - May 1 1978
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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