...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Electron Delocalization in One-Electron Oxidized Aniline Oligomers, Paradigms for Polyaniline. A Study by Paramagnetic Resonance in Fluid Solution
【24h】

Electron Delocalization in One-Electron Oxidized Aniline Oligomers, Paradigms for Polyaniline. A Study by Paramagnetic Resonance in Fluid Solution

机译：单电子氧化苯胺低聚物中的电子离域，聚苯胺的范例。流体溶液中顺磁共振的研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

How far is an electron delocalized in organic conducting polymers? Insights into this aspect are presented by analyzing the spin distribution in radical cations of seven differently substituted aniline oligomers. The paramagnetic stages of dimers, tetramers, and hexamers were studied by EPR/ENDOR spectroscopy in fluid solution and DFT calculations. The EPR isotropic hyperfine coupling constants are compared with calculated counterparts for two model systems. In all derivatives, the main portion of the spin and the charge are confined to the central phenylenediamine moiety; i.e., only a very limited electron delocalization into the adjacent phenyl substituents exists. These experimentally established results point to a substantial contribution of interchain hole transfer in conducting polyanilines.
机译：电子在有机导电聚合物中离域多远？通过分析七个不同取代的苯胺低聚物在自由基阳离子中的自旋分布，可以提供对这一方面的见解。通过EPR / ENDOR光谱在流体溶液和DFT计算中研究了二聚体，四聚体和六聚体的顺磁性阶段。将EPR各向同性超精细耦合常数与两个模型系统的对应值进行比较。在所有衍生物中，自旋的主要部分和电荷都局限于中心的苯二胺部分。即，仅存在非常有限的电子离域到相邻的苯基取代基中。这些实验确定的结果表明链间空穴转移在导电聚苯胺中的重要贡献。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号