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Two-dimensional Fourier transform ESR in the slow-motional and rigid limits: 2D-ELDOR

✍ Scribed by Baldev R. Patyal; Richard H. Crepeau; Dan Gamliel; Jack H. Freed

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 712 KB
Volume: 175
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85563-r

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✦ Synopsis

The two-dimensional Fourier transform ESR techniques of stimulated SECSY and ZD-ELDOR are shown to be powerful methods for the study of slow motions for nitroxides. Stimulated SECSY provides magnetization transfer rates, whereas 2D-ELDOR displays how ihe rotational motions spread the spins out from their initial spectral positions to new spectral positions, as a function of mixing time. The role of nuclear modulation in studies of structure and dynamics is also considered.

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Two-dimensional Fourier transform ESR in the slow-motional and rigid limits: SECSY-ESR

✍ Baldev R. Patyal; Richard H. Crepeau; Dan Gamliel; Jack H. Freed 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 752 KB

Two-dimensional Fourier transform ESR has now been extended to the slow-motional and rigid limit regimes which require spectral bandwidths of 200-250 MHz and sub-nanosecond time resolution in echo decays. Two-pulse SECSY-ESR on nitroxides is shown to provide detailed structural information from the