Thiophene functionalized naphthalene diimide for the sensitive detection of nitroaromatics

696-702In recent years, the detection of nitroaromatics (NACs) has attracted the researchers’ attention due to increased threats of terrorist and environmental protection. In this regard, tetra-thiophene (Th) functionalized naphthalene diimide (NDI) conjugate NDI-Th has been synthesized and confirmed via spectroscopic methods. UV-Vis and fluorescence methods have been utilized to examine the photophysical characteristics of NDI-Th in various solvent systems. Moreover, NDI-Th as a fluorescent sensor displays selective recognition of 2,4-dinitrophenol (DNP) and 2,4-trinitrophenol (TNP) with a limit of detection of 4.74×10–8 M and 7.60×10–8 M, respectively. Thus NDI-Th acts as a promising candidate for explosive multi-NACs detection