Département de Chimie Moléculaire, UMR CNRS-5250, Institut de Chimie Moléculaire de Grenoble, Université Joseph Fourier Grenoble I, FR CNRS-2607, BP 53, 38041 Grenoble Cedex 9, France.
Inorg Chem. 2011 Nov 7;50(21):10581-91. doi: 10.1021/ic2003904. Epub 2011 Aug 19.
We report herein the synthesis and characterization of four new bisterpyridine dinuclear ruthenium complexes containing the dimethyldihydropyrene (DHP) photochrome as bridging ligand. A synthetic strategy has been developed based on a Suzuki coupling reaction to synthesize these novel terpyridine-DHPs. The reactivity of these different ligands and dinuclear ruthenium complexes with light was examined by (1)H NMR and monitoring the changes in their absorption spectra upon irradiation at controlled wavelengths. The free ligands and their corresponding ruthenium complexes all displayed photochromic properties with highly efficient conversion between the closed stable isomers (DHP) and their open forms (CPD). The properties of the compounds in their closed and open forms were investigated by cyclic voltammetry, spectroscopy, and luminescence measurements.
我们在此报告了四种新型双二吡啶钌配合物的合成与表征，这些配合物含有作为桥联配体的二甲基二氢苝（DHP）光致变色体。我们开发了一种基于铃木偶联反应的合成策略，来合成这些新型三联吡啶-DHPs。通过（1）H NMR 对这些不同配体和双核钌配合物与光的反应性进行了检测，并通过在受控波长下照射来监测它们吸收光谱的变化。游离配体及其相应的钌配合物均表现出光致变色特性，其闭合稳定异构体（DHP）与其开环形式（CPD）之间的转化率非常高。通过循环伏安法、光谱法和发光测量对化合物在闭合和开环形式下的性质进行了研究。
