title: A colorimetric chemosensor for Cu²⁺ ion detection based on an iridium(III) complex.
abstract: We report herein the synthesis and application of a series of novel cyclometalated iridium(III) complexes 1-3 bearing a rhodamine-linked NˆN ligand for the detection of Cu(2+) ions. Under the optimised conditions, the complexes exhibited high sensitivity and selectivity for Cu(2+) ions over a panel of other metal ions, and showed consistent performance in a pH value range of 6 to 8. Furthermore, the potential application of this system for the monitoring of Cu(2+) ions in tap water or natural river water samples was demonstrated.
authors.affiliation: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
authors.forename: Modi
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
authors.forename: Ka-Ho
authors.initials: KH
authors.lastname: Leung
authors.affiliation: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Lin
authors.affiliation: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
authors.forename: Daniel Shiu-Hin
authors.initials: DS
authors.lastname: Chan
authors.affiliation: Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
authors.forename: Daniel W J
authors.initials: DW
authors.lastname: Kwong
authors.affiliation: State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
authors.forename: Chung-Hang
authors.initials: CH
authors.lastname: Leung
authors.affiliation: 1] Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China [2] Partner State Key Laboratory of Environmental and Biological Analysis.
authors.forename: Dik-Lung
authors.initials: DL
authors.lastname: Ma
mesh_terms: D003124:Colorimetry; D003300:Copper / Q000737:chemistry / Q000302:isolation & purification*; D005618:Fresh Water / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007477:Ions / Q000737:chemistry / Q000302:isolation & purification*; D007495:Iridium / Q000737:chemistry; D008024:Ligands; D012235:Rhodamines / Q000737:chemistry; D045483:Rivers / Q000737:chemistry
chemical_list: D007477:Ions; D008024:Ligands; D012235:Rhodamines; D007495:Iridium; D003300:Copper