Details

Autor(en) / Beteiligte

• Kumar, Pramod
• Kumar, Vijay
• Gupta, Rajeev

Titel

Arene-based fluorescent probes for the selective detection of iron

Ist Teil von

• RSC advances, 2015-01, Vol.5 (118), p.97874-97882

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Pyridine-2,6-dicarboxamide based probes containing phenyl ( L1 ), naphthyl ( L2 ) and anthracenyl ( L3 ) groups have been synthesized and screened towards Na + , Mg 2+ , Ca 2+ , Cr 3+ , Mn 2+ , Mn 3+ , Fe 2+ , Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ , Zn 2+ , Hg 2+ , Cd 2+ and Pb 2+ ions. Probes L2 and L3 exhibited remarkable sensing for Fe 2+ and Fe 3+ ions with L3 being particularly selective. Collective studies comprising of Job's plot, Benesi–Hildebrand fitting, Stern–Volmer plot and detection limit display notable sensing ability of probe L3 for Fe 3+ as compared to Fe 2+ ion. Competitive binding studies in presence of other metal ions further illustrated the high efficiency of L3 . The probe L3 binds to Fe 3+ ion by forming a 1 : 1 complex with the apparent association constant ( K a ) of 3.31 × 10 3 M −1 . L3 –Fe 3+ system is shown to have potential applications in logic gate and cell imaging.