• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >A Waterwheel-Shaped meso-meso-Linked Porphyrin Pentamer
【24h】

A Waterwheel-Shaped meso-meso-Linked Porphyrin Pentamer

机译：水轮状中观介导的卟啉五聚体

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

The design and synthesis of porphyrin arrays with well-defined geometries have attracted considerable attention because they can be used to mimic the function of light-harvesting complexes in photosynthetic system and are ideal candidates for application in molecular electronic devices. To construct porphyrin arrays, numerous synthetic approaches including covalent synthesis,[1–3] and self-assembly by metal-coordination[4–6] or hydrogen bonding[7, 8] have been developed. Among these methods, covalent synthesis is most widely employed. Lindsey et al. have reported the synthesis of numerous phenylene- and diphenylethynyl-bridged multiporphyrins for mimicking the biological light-harvesting antenna systems and these systems exhibit efficient energy transfer which involves a through-bond process mediated by the bridge.[9–10] Recently, butadiyne- or ethynebridged porphyrin arrays have been synthesized.[11–12] They exhibit very strong interporphyrin coupling and act as efficient molecular wires for mediating charge migration. In a pioneering study carried out by Osuka and co-workers the meso–meso-linked and multiply-linked porphyrin arrays were synthesized by AgI-promoted oxidative coupling.[13] Their work marks an important milestone in the development of porphyrin arrays because the synthetic route is relatively simple and these rigid molecules show high stability and are capable of efficiently transmitting excited energy or an electron over a long distance, which meet the requirements for many molecular devices.
机译：具有良好定义的几何结构的卟啉阵列的设计和合成引起了相当大的关注，因为它们可用于模拟光合作用系统中的光收集复合物的功能，并且是分子电子设备中应用的理想候选者。为了构建卟啉阵列，已经开发了许多合成方法，包括共价合成[1-3]和通过金属配位[4-6]或氢键自组装[7，8]自组装。在这些方法中，最广泛采用共价合成。 Lindsey等。已报道了许多用于模拟生物光捕获天线系统的亚苯基和二苯基乙炔基桥连的多卟啉的合成，这些系统表现出有效的能量转移，涉及由桥介导的全键合过程。[9-10]最近，butadiyne-或合成乙炔基卟啉阵列。[11-12]它们表现出非常强的卟啉间偶联，并充当介导电荷迁移的有效分子线。在Osuka和他的同事进行的一项开创性研究中，通过AgI促进的氧化偶联合成了内消旋-内消旋和多联卟啉阵列[13]。他们的工作标志着卟啉阵列发展的重要里程碑，因为合成路线相对简单，并且这些刚性分子显示出高稳定性，并能够有效地长距离传输激发能或电子，从而满足了许多分子器件的要求。 。

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