title: O-tert-butyldiphenylsilyl coumarin and dicoumarol: a case toward selective sensing of F- ions in organic and aqueous environments.
abstract: O-tert-Butyldiphenylsilyl coumarin 1 and 2 dicoumarol have been synthesized and their anion binding properties have been examined in organic and aqueous organic solvents. Compound 1 senses F(-) selectively over the other anions examined in CHCl3 by exhibiting a greater increase in emission. In contrast, compound 2 shows similar selectivity in CHCl3 giving ratiometric change in emission as well as color. In addition, both 1 and 2 are capable of detecting F(-) in water ensuing the cleavage of Si-O bonds. They also show cell permeability and demonstrate their abilities to detect F(-) in a living system.
authors.affiliation: Department of Chemistry, University of Kalyani, Kalyani-741235, India. ghosh_k2003@yahoo.co.in
authors.forename: Kumaresh
authors.initials: K
authors.lastname: Ghosh
authors.forename: Debasis
authors.initials: D
authors.lastname: Kar
authors.forename: Roland
authors.initials: R
authors.lastname: Fröhlich
authors.forename: Asoke P
authors.initials: AP
authors.lastname: Chattopadhyay
authors.forename: Asmita
authors.initials: A
authors.lastname: Samadder
authors.forename: Anisur Rahman
authors.initials: AR
authors.lastname: Khuda-Bukhsh
mesh_terms: D002725:Chloroform / Q000737:chemistry*; D003374:Coumarins / Q000138:chemical synthesis / Q000737:chemistry*; D001728:Dicumarol / Q000138:chemical synthesis / Q000737:chemistry*; D005459:Fluorides / Q000032:analysis*; D007477:Ions / Q000032:analysis; D017646:Organosilicon Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D003374:Coumarins; D007477:Ions; D017646:Organosilicon Compounds; D014867:Water; D001728:Dicumarol; D002725:Chloroform; C030123:coumarin; D005459:Fluorides