Turn-on fluorescent sensor for the detection of cyanide based on a novel dicyanovinyl phenylacetylene

Abstract

A novel phenylacetylene derivative (3) was successfully synthesized via Sonogashira coupling and a Knoevenagel reaction for cyanide ion detection.

Triphenylamine-based small-molecule fluorescent probes

“…4). 33 There was a fluorescence enhancement upon the addition of cyanide. Probe 6 showed an emission band at 460 nm in ACN/H 2 O solution (9 : 1 v/v, 10 mM PBS buffer pH = 10.0) with excitation at 368 nm.…”

2,3-Diaryl-1,1,4,4-tetracyanobutadienes as Colorimetric Sensors for Sulfide Ion in Aqueous Media

“…It is likely that the dicyanovinyl groups prohibit the fluorescence emission of their excited states. [26][27][28][29] Figure 2 UV-Vis spectra of P1 and P2 (10 µM) in 100% DMSO…”

A sensitive and selective BINOL based ratiometric fluorescence sensor for the detection of cyanide ions

“…The results conrmed the selective detection of CN À based on nucleophilic addition of CN À ion in the pconjugated position of dicyanovinyl moiety. 16,[54][55][56][57][58][59][60][61][62] In addition, the structure and the binding mechanism were further analysed by FT-IR analysis of free BBCN and BBCN-CN À (Fig. S10 †).…”