A core-substituted naphthalene diimide fluoride sensor

…, SV Bhosale, MB Kalyankar, SJ Langford

Index: Bhosale, Sheshanath V.; Bhosale, Sidhanath V.; Kalyankar, Mohan B.; Langford, Steven J. Organic Letters, 2009 , vol. 11, # 23 p. 5418 - 5421

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Citation Number: 129

Abstract

The synthesis and characterization of a highly fluorescent core-substituted naphthalene diimide sensor (ϕ= 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 CHCl3 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∼ 106 M− 1) over other anions with ...