Lin V S, DiMagno S G, Therien M J
Department of Chemistry, University of Pennsylvania, Philadelphia 19104-6323.
Science. 1994 May 20;264(5162):1105-11. doi: 10.1126/science.8178169.
A new class of porphyrin-based chromophore systems has been prepared from ethyne-elaborated porphyrin synthons through the use of metal-mediated cross-coupling methodologies. These systems feature porphyrin chromophores wired together through single ethynyl linkages. This type of topological connectivity affords exceptional electronic interactions between the chromophores which are manifest in their room temperature photophysics, optical spectroscopy, and electrochemistry; these spectroscopic signatures indicate that these species model many of the essential characteristics of biological light-harvesting antenna systems.
通过使用金属介导的交叉偶联方法，从乙炔修饰的卟啉合成子制备了一类新型的基于卟啉的发色团体系。这些体系的特征是卟啉发色团通过单个乙炔键连接在一起。这种拓扑连接方式在发色团之间提供了特殊的电子相互作用，这在它们的室温光物理、光谱学和电化学中表现出来；这些光谱特征表明，这些物质模拟了生物光捕获天线系统的许多基本特征。
