study on metal complexes with extended pi-conjugated system toward molecular circuits

获得了以下三个与分子器件相关的结果。 1）二维布线系统的构建：六芳基苯被证明是分子布线的有效二维连接剂。 2）光开关机理：通过量子化学方法分析了性能对金属和配体的依赖性。 其发生取决于最终部分的过程。 3）具有扩展π共轭体系的金属配合物：制备了单核、二核和四核卟啉配合物，并研究了它们与堆叠、发光性能切换、连接性能和二维M-M相互作用相关的性能。这些发现将促进未来分子器件的发展。

The following three results relevant to molecular device have been obtained. 1) construction of 2-dimensional wiring system: Hexaarylbenzene turns out to be effective 2-dimensional linker for molecular wiring. 2) mechanism of photoswitching: Dependence of performance on the metal and ligand has been analyzed by quantum chemical method. The occurence is dependent on a process in the final part. 3) metal complexes with extended pi-conjugated systems: Mon-, di- and tetra-nuclear porphyrin complexes are prepared and their properties relevant to stacking, switching of luminescent properties, linker performance, and 2-dimensional M-M interaction have been studied.These findings would lead to development of molecular devices in the future.