Electron-Nuclear Double Resonance Studies of Pristine and ^<13>C-Enriched Polyacetylene
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概要
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Electron-nuclear double resonance (ENDOR) and electron-nuclear-nauclear tripleresonance (TRIPLE) s)cectra of pristine c7.v-rich (CH). at low teunperatures are cozasis-tent witla the spin density distributioxt of tlte soliton joredicted for a fiuaite electron cor-relation. The ratio ofl tlae peak x'alue of the negative sjcin deuas?ty 7t(1) to tlaat of thepositive spin dexasity p(O) is deterxnined to be p(1)/p(0) - 0.44 w'itla the aid of EN-DOR-induced El,SR n?easurements. On flair other hancl, ixatriu?sic ENDOR spectra dueto tlte soliton spin dertsity is not observable ixa "C-cnriclted sanaples because of tlteline shape distortion caused by the overlapping secoutcl-harunoutic signal of "C nuclearfrequency and otlacr structures at frequencies reIatec[ to 'H amad "C nuclear Larmorfrequencies.[END0R, soliton in polyacetyleuae, electron correl;ttion, ntultiple and fractional ]l nuclear quantum 1.ransitions, cross relaxation effectsl
- 社団法人日本物理学会の論文
- 1992-08-15
著者
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SHIRAKAWA Hideki
Institute of Material Science, University of Tsukuba
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KURODA Shin-ichi
Electrotechnical Laboratory
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