A novel family of Ru(II) polypyridyl complexes containing benzocrown ether for Na+ and Li+ probing
作者:Feixiang Cheng、Ning Tang
DOI:10.1016/j.inoche.2008.01.008
日期:2008.4
Two polypyridyl ligands 4'-(imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzo-12--crown-4 (L(1)), 4'-(imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzo-15-crown-5 (L(2)) and corresponding complexes [(bpy)(2)RuL(1-2)](PF(6))(2) (1, and 2) and [Ru(L(1-2))(3)](PF(6))(2) (3, and 4) have been synthesized. These complexes show metal-to-ligand charge transfer absorption at 458-468 nm and emission at 585-592 nm. Binding ability of the complexes with Li(+) and Na(+) were investigated by fluorescence and UV-vis titration. (C) 2008 Elsevier B.V. All rights reserved.