Reversible photoelectronic signal conversion based on photoisomerization-controlled coordination change of azobenzene-bipyridine ligands to copper.
Reversible photoelectronic signal conversion based on photoisomerization-controlled coordination change of azobenzene-bipyridine ligands to copper.
复制标题
DOI：
10.1021/ja045093p
复制
发表时间：
2005-01
影响因子：
15
通讯作者：
S. Kume;Masaki Murata;T. Ozeki;H. Nishihara
中科院分区：
文献类型：
--
作者：
S. Kume;Masaki Murata;T. Ozeki;H. Nishihara
本文报道了一种全光驱动的循环式分子光电转换器。6，6 '-双（4 "-甲苯偶氮）-4，4'-双（4-叔丁基苯基）-2，2 '-联吡啶中偶氮苯部分的紫外/蓝光控制的重复运动导致CuI在两种配位环境之间的相互移位，导致CuI的氧化还原电位的泵送。因此，UV/蓝光信息可以成功地转化为电极电位变化和正/负电流响应，这在功能和机械上都与自然视觉转导密切相关。这一结果为人工分子机器组装提供了一种新的策略，即在输入/输出对之间形成一条多步化学反应的路径。
A new "molecular photoelectronic transducer", working in a cyclic manner totally powered with light irradiation, has been constructed. The UV/blue-controlled repetitive motion of azobenzene moieties in 6,6'-bis(4' '-tolylazo)-4,4'-bis(4-tertbutylphenyl)-2,2'-bipyridine causes reciprocal CuI translocation between two coordination environments, resulting in pumping of the redox potential of CuI. Therefore, UV/blue light information can be successfully transformed into an electrode potential change and positive/negative current response, which is closely related to natural visual transduction both functionally and mechanically. This result demonstrates a new strategy for artificial molecular machine assembly, i.e. forming a path with multistep chemical reactions between input/output couples at choice.