ENDOR SPECTROSCOPY OF POLY(PARA-PHENYLENE VINYLENE)

被引：3
|
作者：
KURODA, S [1 ]
NOGUCHI, T [1 ]
OHNISHI, T [1 ]
机构：
[1] SUMITOMO CHEM CO LTD,TSUKUBA RES LAB,TSUKUBA,IBARAKI 30032,JAPAN
来源：
SYNTHETIC METALS | 1995年 / 69卷 / 1-3期
关键词：
D O I：
10.1016/0379-6779(94)02512-W
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electron nuclear double resonance (ENDOR) measurements have been performed on stretch-oriented undoped poly(paraphenylene vinylene) at 4K. Spectra show clear anisotropy of unpaired x-electron on the conjugated chain. The maximum value of the spin density reaches 0.09, which corresponds to the half-width of the spatial extension of the spin over several phenyl rings. Spectrum of the stretch direction is associated with resolved structures, showing that the spin distribution is not monotonic. Resemblance between the dark ESR, detected by ENDOR-induced ESR, with light-induced ESR strongly suggests that the observed spins are trapped polarons.
引用
收藏
页码：423 / 424
页数：2
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