Highly selective acetate optical sensing of a ruthenium(II) complex carrying imidazole and indole groups.
The effects of addition of F(-), Cl(-), Br(-), I(-), NO(3)(-), H(2)PO(4)(-), and OAc(-) on the UV-vis and emission spectra of Ru(II) complex [Ru(bpy)(2)(H(2)iip)](ClO(4))(2) {bpy=2,2'-bipyridyl, H(2)iip=2-indole-3-yl-imidazole[4,5-f][1,10]-phenanthroline} in dimethyl sulfone were studied. The Ru(II) complex was evidenced to be a highly selective optical sensor for OAc(-). Addition of OAc(-) elicited a distinct change in color from yellow to light orange which can be detected by naked-eye, and an almost vanished emission of the Ru(II) complex at a much lower concentration of OAc(-) than those of the other anions.
Yang
Huai-Xia
HX
Pharmacy College, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China.
Liu
Yan-Ju
YJ
Zhao
Lin
L
Wang
Ke-Zhi
KZ
D000085:Acetates / Q000032:analysis*; D000838:Anions / Q000032:analysis*; D007093:Imidazoles / Q000737:chemistry; D007211:Indoles / Q000737:chemistry; D049449:Luminescence; D010618:Phenanthrolines / Q000737:chemistry; D017975:Ruthenium Compounds / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*
D000085:Acetates; D000838:Anions; D007093:Imidazoles; D007211:Indoles; D010618:Phenanthrolines; D017975:Ruthenium Compounds; C029899:imidazole; C030374:indole