A core-substituted naphthalene diimide fluoride sensor.
The synthesis and characterization of a highly fluorescent core-substituted naphthalene diimide sensor (varphi = 0.34) bearing a bis-sulfonamide group is described. The compound shows a unique selectivity and reactivity for the fluoride ion over other anions in CHCl(3) by a two-stage deprotonation process leading to a colorimetric response. In DMSO solution, the sensor is shown to be highly selective for fluoride (K(a) approximately 10(6) M(-1)) over other anions with more pronounced changes in absorption characteristics.
Bhosale
Sheshanath V
SV
School of Chemistry, Monash University, Clayton, Victoria, Australia 3800. sheshanath.bhosale@sci.monash.edu.au
Bhosale
Sidhanath V
SV
Kalyankar
Mohan B
MB
Langford
Steven J
SJ
D000838:Anions; D003124:Colorimetry; D018360:Crystallography, X-Ray; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D005459:Fluorides / Q000032:analysis*; D015394:Molecular Structure; D009281:Naphthalenes / Q000138:chemical synthesis* / Q000737:chemistry
D000838:Anions; D005456:Fluorescent Dyes; D009281:Naphthalenes; D005459:Fluorides