Abstract
The electrochemical characteristics and intermetallic interaction of symmetrical binurclear ruthenium (ll) complexes [Ru2 : (bpy)2Ru(DIPB)Ru(bpy)2(ClO4)4 and Ru2-2H : (bpy)2Ru(DIPB - 2H)Ru(bpy)2(ClO4)2]containing dinuclear ligand 2,2-bipyridine (bpy) andbridging 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 havebeen investigated using cyclic voltammetry, cyclic ac voltammetry and differential capacitancetechniques,etc. In acetonitrile solutions with a concentration of 0.1 mol/L TBAP, the centraruthenium ions in Ru2 and Ru2-2H complexes have shown a single 2e reversible oxidationreduction wave on the cyclic voltammograms with basically the same formal potentials of Ru2-2H andRu2 and a slightly larger apparent diffusion coefficient of the Ru2-2H complex cation than that ofRu2, i.e., 3.94 x10-6 cm2/s and 3.50 x10-6 cm2/s respectively. It appears that an enhancedelectronic interaction exists between the two central ruthenium ions in the deprotonation of thebridging 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
2000-10-30
Received Date
2000-09-29
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): 167-162.
DOI: 10.61558/2993-074X.3247
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss2/9
