‘Metal free’ fluorescent anionic assemblies: Efficient platform for detection of electron deficient nitroaromatics and cationic dyes

Hydrogen bond directed high-fidelity optical detection of picric acid: A single driver on diverse roads towards the same destiny

“…18) showed CN − ion assisted supramolecular assembly and displayed emission enhancement at 440 nm ( λ ex = 320 nm) in a H 2 O–THF (6 : 4; v/v) mixed solvent. 136 The quantum yield of 106 was significantly enhanced from 0.051 to 0.65 upon association with CN − . Thus, the electron-rich supramolecular assembly selectively detected electron-deficient PA via a fluorescence ‘turn-off’ response.…”