Journal
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Volume 640, Issue 8-9, Pages 1816-1821Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/zaac.201300662
Keywords
Ruthenium; Cu2+ sensing; UV/Vis spectroscopy; Fluorescence; Electrochemistry
Categories
Funding
- National Natural Science Foundation of China [21261019]
- Yunnan Provincial Science and Technology Department [2010ZC148]
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The dinuclear Ru-II complex [{Ru(bpy)(2)}(2)(mu(2)-H2L)](4+) (bpy = 2,2'-bipyridine, H2L = 2,6-bis{4-(1,10-phenanthroline-[5,6-d]imidazol-2-yl)}pyridine) was synthesized and characterized. The effects of the cation on the UV/Vis absorption and fluorescence spectra as well as the electrochemical properties of the complex were studied. It served as a fluorescent sensor with high selectivity and sensitivity toward Cu2+ among 17 metal ions. The complex showed 2:1 binding ratio with Cu2+ in H2O/CH3CN solution (1:1, v/v) with a high binding constant of 2.69 x 10(11) M-1.
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