Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/107214
Type: Artigo de periódico
Title: Ese Studies Of Pristine Paramagnetic Species Of Ceo Powder Samples
Author: Pinhal N.M.
Vugman N.V.
Herbst M.H.
Dias G.H.M.
Abstract: Paramagnetic centers in pristine polycrystalline C60 samples are investigated at room temperature using continuous wave electron paramagnetic resonance (CW-EPR) and electron spin-echo spectroscopy. Two paramagnetic species, with same measured g-values, are separated using echo-detected EPR and the PEANUT pulse scheme. Electron-spin nutation frequencies for both species are measured using the latter technique. For the doublet species, usually observed by CW-EPR, nutation frequency is 7.5 MHz. The second species, with a nutation frequency of 10.4 MHz, is a spin triplet. This species is solely revealed by pulse methods and corresponds to dipolar coupling of C60 paramagnetic centers located at the diagonals of the fullerene fee lattice. © 2000 American Chemical Society.
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0008875658&partnerID=40&md5=8747eaf0a93e992fcdbed3799fc1d3c6
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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