title: A new bis(rhodamine)-based fluorescent chemosensor for Fe3+.
abstract: A new bis(rhodamine)-based fluorescent probe 4 was synthesized, and it exhibited high selectivity for Fe(3+) over other commonly coexistent metal ions in both 50% ethanol and Tris-HCl buffer. Upon the addition of Fe(3+), the spirocyclic ring of 4 was opened and a significant enhancement of visible color and fluorescence in the range of 500-600 nm was observed.
authors.affiliation: Phosphorus Chemical Engineering Research Center of Henan Province, Department of Chemistry, Zhengzhou University, Zhengzhou, China.
authors.forename: Xiaopo
authors.initials: X
authors.lastname: Chen
authors.forename: Huijie
authors.initials: H
authors.lastname: Hong
authors.forename: Rui
authors.initials: R
authors.lastname: Han
authors.forename: Di
authors.initials: D
authors.lastname: Zhang
authors.forename: Yong
authors.initials: Y
authors.lastname: Ye
authors.forename: Yu-fen
authors.initials: YF
authors.lastname: Zhao
mesh_terms: D005290:Ferric Compounds / Q000032:analysis*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D012235:Rhodamines / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D005456:Fluorescent Dyes; D012235:Rhodamines