Journal
DALTON TRANSACTIONS
Volume 39, Issue 37, Pages 8626-8630Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0dt00279h
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Funding
- State Key Laboratory of Fine Chemicals, Dalian University of Technology [KF0819]
- Education Ministry and National Natural Science Foundation of China [20872012, 20071108, 707016, 20706008, 20725621]
- Education Department of Liaoning Province [2008S040]
- Specialized Research Fund for the Doctoral Program of Higher Education [200801411004]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT0711]
- State Key Laboratory of Bioelectronics, Southeast University
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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.
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