Abstract
The electrochemical characteristics and intermetallic interaction of symmetrical binuclear ruthenium(Ⅱ) complexes [Ru2:(bpy) 2Ru(DIPB)Ru(bpy) 2(ClO 4) 4 and Ru2_2H:(bpy) 2Ru(DIPB-2H)Ru(bpy) 2(ClO 4) 2 ]containing dinuclear ligand 2,2_bipyridine(bpy) and bridging ligand 1,4_di[2_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB) or 1,4_di[2_dehydrogen_imidazo[4,5_f][1,10] phenanthroine]benzene(DIPB_2H) on a platinum electrode have been investigated using cyclic voltammetry,cyclic ac voltammetry and differential capacitance techniques,etc.In acetonitrile solutions with a concentration of 0.1 mol/L TBAP,the central ruthenium ions in Ru2 and Ru2_2H complexes have shown a single 2e reversible oxidation_reduction wave on the cyclic voltammograms with basically the same formal potentials of Ru2_2H and Ru2 and a slightly larger apparent diffusion coefficient of the Ru2_2H complex cation than that of Ru2,i.e.,3.94×10 -6 cm 2/s and 3.50 ×10 -6 cm 2/s respectively.It appears that an enhanced electronic interaction exists between the two central ruthenium ions in the deprotonation of the bridging ligand(DIPB).
Keywords
Binuclear ruthenium(Ⅱ) complex, Deprotonation, Electrochemical characteristics, Electronic interaction
Publication Date
2001-05-28
Online Available Date
2001-05-28
Revised Date
2001-05-28
Received Date
2001-05-28
Recommended Citation
Hong LI, Hui CHAO, Liang-nian JI, Xiong JIANG.
Electrochemical Studies on the Intermetallic Interaction in Binuclear Ruthenium(Ⅱ) Complexes[J]. Journal of Electrochemistry,
2001
,
7(2): Article 9.
DOI: 10.61558/2993-074X.3247
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss2/9
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