Solvent-dependent selective fluorescence assay of aluminum and gallium ions using julolidine-based probe

Crystal structure of (E)-9-({[4-(diethylamino)phenyl]imino}methyl)-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-8-ol

“…8-Hydroxyjulolidine-9-carboxaldehyde is a well-known chromophore used in fluorescence chemosensors, and chemosensors with the julolidine moiety are usually soluble in aqueous solutions (Narayanaswamy & Govindaraju, 2012;Maity et al, 2011;Na et al, 2013;Noh et al, 2013). Compounds containing a julolidine group exhibit chromogenic naked-eye detection of copper, zinc, iron and aluminium ions as well as fluoride ions (Choi et al, 2015;Wang et al, 2013a,b;Kim et al, 2015;Jo et al, 2015).…”

A novel flavone-based fluorescent probe for relay recognition of HSO3− and Al3+

“…To the best of our knowledge, this is the first report about aldehyde-based fluorescent probe to sense both HSO 3 À and Al 3+ , although many Al 3+ sensors have been reported [24][25][26][27][28]. Meanwhile, another compound, 3-hydroxyflavone (3HF), as an Al 3+ probe based on the former research [29] was prepared as a reference substance to discuss the process of sequential recognition.…”

Dinuclear complexes of europium(III) and gadolinium(III) ions with a julolidine–quinoline-based tridentate ligand

“…Consequently, it has been recognized as a versatile functional group for colorimetric metallo-supramolecular systems. Current research into these systems focuses on selective molecular recognition with common transition metals [14][15][16][17][18] and/or anions [19][20][21][22][23]. The julolidine-based colorimetric material used in this research is a Schiff base chemosensor ligand, HL, consisting of 8-hydroxyjulolidine-9-carboxaldehyde with 8-aminoquinoline in a 1 : 1 synthesis [24,25].…”