title: ECL performance of ruthenium tris-bipyridyl complexes covalently linked with phenothiazine through different bridge.
abstract: Three ruthenium complexes 1a, 1b and 1c were synthesized, in which the phenothiazine moiety was covalently linked to the ruthenium complex through a 4 carbon chain and amide bond, respectively. The results demonstrate that one PTZ moiety is preferred to reach a good ECL performance, and the 4 carbon chain linked complex 1a exhibits the highest ECL enhancement (up to about 9 times), in comparison with the commonly utilized parent Ru(bpy)(3)(2+), permitting a lower detection limit of 1.0 x 10(-14) M with signal to noise of 3 for 20 mM DBAE at Au electrode.
authors: State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Xigang District, Dalian, 116012, China. shiguo@dlut.edu.cn
authors: Shiguo
authors: S
authors: Sun
authors: Yang
authors: Y
authors: Yang
authors: Fengyu
authors: F
authors: Liu
authors: Jiangli
authors: J
authors: Fan
authors: Jan
authors: J
authors: Kehr
authors: Licheng
authors: L
authors: Sun
authors: Xiaojun
authors: X
authors: Peng
mesh_terms: D056831:Coordination Complexes / Q000032:analysis*; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006046:Gold / Q000737:chemistry; D008163:Luminescent Measurements; D009942:Organometallic Compounds / Q000737:chemistry*; D010640:Phenothiazines / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D009942:Organometallic Compounds; D010640:Phenothiazines; C415768:tris(2,2'-bipyridyl)ruthenium(II); D006046:Gold; C031637:phenothiazine