Département de chimie, Université de Montréal, Montréal, Québec, Canada H3T 1J4.
Chem Soc Rev. 2014 Sep 7;43(17):6184-97. doi: 10.1039/c4cs00123k.
Artificial photosynthetic systems that contain light-harvesting coordination complexes may one day replace conventional non-renewable sources of energy with renewable solar energy sources. Light-Harvesting Complexes (LHC) are important components of natural photosynthetic systems and are also sought after in artificial systems as well. Polynuclear photoactive complexes are therefore very attractive, and those based on stereogenic Ru(2,2'-bipyridine)3 are photophysically appealing, but difficult to obtain in a stereochemically pure form. On the other hand, polynuclear complexes based on the achiral Ru(2,2':6',2''-terpyridine)2 motif are easy to synthesise, however, these complexes are devoid of attractive excited-state properties. Hence strategies to increase the r.t. excited-state lifetime of these complexes would be of practical importance in vectorial electron and/or electron transfer in various optoelectronic applications. This tutorial review will report on the sophisticated synthetic strategies currently in use to enhance the photophysical properties of mononuclear Ru(II) complexes of tridentate ligands at room temperature.
人工光合作用系统包含光捕获配位化合物，有朝一日可能会用可再生的太阳能取代传统的不可再生能源。光捕获复合物（LHC）是自然光合作用系统的重要组成部分，也是人工系统所追求的。多核光活性配合物因此非常有吸引力，基于手性Ru(2,2'-联吡啶)3的配合物在光物理上很有吸引力，但很难以立体化学纯的形式获得。另一方面，基于非手性Ru(2,2':6',2''-三联吡啶)2基的多核配合物很容易合成，然而，这些配合物缺乏有吸引力的激发态性质。因此，提高这些配合物的 r.t.激发态寿命的策略在各种光电应用中的向量电子和/或电子转移中具有实际重要性。本综述将报道目前用于提高室温下单核 Ru(II)配合物的光物理性质的复杂合成策略。
