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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50440

Title: Ruthenium and Rhenium Complexes of Fluorine-Based Bipyridine Ligands: Synthesis, Spectra and Electrochemistry
Authors: Thomas, K. R. J
Lin, J.-T
Lin, H.-M
Chang, C.-P
Chuen, C.-H
Contributors: 國立臺灣海洋大學:生命科學暨生物科技學系
Date: 2002-02
Issue Date: 2018-10-08T06:22:53Z
Publisher: Organometallics
Abstract: Abstract: Bipyridine ligands containing pendant methyl, amino, and amino-boronic acid groups were synthesized. Coordination complexes of these ligands with rhenium were prepared straightforwardly and in good yield. The fluorescence behavior of the Re complexes was studied as a function of pH and exposure to various concentrations of glucose. The methyl bipyridine complex showed no change in fluorescence with pH, the amino derivative showed a rapid decrease from low pH to neutral, and the amino-boronate derivative showed little change from pH 4 to 10. Fluorescence quenching was observed at high pH as expected on the basis of a photoinduced electron transfer (PET) signaling mechanism. This behavior can be explained on the basis of the first oxidation and reduction potentials of these complexes. Glucose testing showed a significant dependence on the solvent system used. In pure methanol, the rhenium boronate complex exhibited a 55% fluorescence intensity increase upon increasing glucose concentration from 0 to 400 mg/dL. However, in 50 vol % methanol/phosphate buffered saline, none of the complexes showed significant response in the glucose range of physiological interest.
Relation: 41(6) pp.1662-1669
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50440
Appears in Collections:[水產養殖學系] 期刊論文

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