DOI: 10.1039/d4ra08510h ISSN: 2046-2069
New 8-hydroxyquinoline-based azo dyes as highly sensitive colorimetric chemosensors for nickel cation
Sefiu Olalekan Olaleye, Sunday Olakunle Idowu, Shakil Ahmed, Maria Aqeel KhanA new series of sensitive 8-hydroxyquinoline azo-compounds (S1–S8) as sensors was synthesized by diazotization and diazo-coupling, and these compounds were characterized through UV, FTIR, 1H-NMR, 13C-NMR and ESI-MS investigations.