A naphthalene-based azo armed molecular framework for selective sensing of Al³⁺

Abstract

An azo armed Schiff base chemosensor was synthesized based on naphthalene fluorophore, which transduces greenish-yellow emission by complexing with Al3+. It emits greenish-yellow fluorescent through restricted C=N isomerization, chelation-enhanced fluorescence,...

A new “turn-on” molecular switch for idiosyncratic detection of Al3+ ion along with its application in live cell imaging

“…On further increase in pH, we noticed a decrease in the emission for HBTC-Al 3+ due to removal of Al 3+ as its hydroxide, generating free probe. 31 Thus we can conclude that HBTC can be used for efficient detection of Al 3+ at physiological pH (7.2).…”

Azobenzene-Containing Schiff-Bases—Syntheses and Dyes Applications

“…A 1:1 stoichiometry binding between the chemosensor and Al 3+ ions has been confirmed from Job's plot. This 1:1/Al 3+ :ligand complexation stoichiometry was also found when the azo moiety beard a naphthalene fluorophore [79]. An inhibition molecular logic gate has been constructed using the ligand bis(azo) where Al 3+ and EDTA act as inputs and fluorescence emission is the output.…”