混合价态双核钌配合物合成及其光谱电化学性质  

Synthesis and spectroelectrochemistry properties of a mixed-valence dinuclear ruthenium complex

作　　者：李敏娜[1] 赵常志[2] 刘建辉[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116012 [2]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《大连理工大学学报》2007年第2期166-169,共4页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目(20128005)

摘　　要：合成了一种新的以吡啶和酚为配体的混合价态双核金属钌的配合物Ru2BMPB,并对其光谱电化学性能进行了研究.该配合物具有可逆的单电子氧化还原过程(E1/2=0.19 V,-0.50 V),很好的稳定性(平衡常数K=1.46×1012).可见与近红外吸收光谱显示,该配合物在410、665和1 580 nm处均出现较强的吸收.在可控制的电位下,中心离子Ru的电子转移引起Ru2BMPB的可见与近红外吸收光谱的变化,具有可控制的开关性能.A mixed-valence dinuclear ruthenium complex Ru2BMPB was synthesized and its spectroelectrochemistry properties were investigated. The Ru2^ⅡⅢ complex undergoes reversible single-electron reduction （E1/2=- 0.50 V） and oxidation （E1/2 =-0. 19 V） resulting in the Ru2^ⅡⅢ and Ru2^ⅡⅢ complexes, respectively. A comproportionation constant of K =1.46 × 10^12 indicates considerable stability of the mixed-valence state. Three intense, distinguishable, intervalence bands are observed in the visible and near IR spectrum of Ru2 BMPB at 410, 665 and 1 580 nm, and absorption or transmission can be controlled by potential because of the electronic transferring of ruthenium, which exhibits the switch performance.

关 键 词：金属钌配合物 有机合成 光谱电化学 

分 类 号：O627.8[理学—有机化学]