Use of the Frank sequence in pulsed EPR

Mark Tseitlin, Richard W. Quine, Sandra S. Eaton, Gareth R. Eaton, Howard J. Halpern, Jan Henrik Ardenkjær-Larsen

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Abstract

The Frank polyphase sequence has been applied to pulsed EPR of triarylmethyl radicals at 256MHz (9.1mT magnetic field), using 256 phase pulses. In EPR, as in NMR, use of a Frank sequence of phase steps permits pulsed FID signal acquisition with very low power microwave/RF pulses (ca. 1.5mW in the application reported here) relative to standard pulsed EPR. A 0.2mM aqueous solution of a triarylmethyl radical was studied using a 16mm diameter cross-loop resonator to isolate the EPR signal detection system from the incident pulses.
Keyword: Correlation spectroscopy,Multi-pulse EPR,Low power pulses,NMR,EPR,Frank sequence
Original languageEnglish
JournalJournal of Magnetic Resonance
Volume209
Issue number2
Pages (from-to)306-309
ISSN1090-7807
DOIs
Publication statusPublished - 2011

Cite this

Tseitlin, M., Quine, R. W., Eaton, S. S., Eaton, G. R., Halpern, H. J., & Ardenkjær-Larsen, J. H. (2011). Use of the Frank sequence in pulsed EPR. Journal of Magnetic Resonance, 209(2), 306-309. https://doi.org/10.1016/j.jmr.2011.01.032