Research Information System
EUROPEAN JOURNAL OF CHEMISTRY, vol.5, no.2, pp.370-373, 2014 (Peer-Reviewed Journal)
A new receptor named, 2‐(2‐(2,4‐dinitrophenyl)hydrazono)2H‐indene‐1,3‐dione,used as a
colorimetric sensor based on 2,4‐dinitrophenylhydrazone derivative of ninhydrin was
synthesized by simple step with good yields and characterized by IR and 1H, 13C NMR and MS
spectroscopic techniques. The anion recognition properties were studied by UV‐Vis
spectroscopic technique. The results showed that the receptor had a higher affinity to F‐, CN‐,
H2PO4‐, CH3COO‐ and OH‐, but shows no evident binding with Cl‐, Br‐ and I‐. Binding of the
reseptor to anions such as CN‐, AcO‐, F‐, H2PO4‐ and OH‐exhibited an obvious color change from
greenish yellow to purplish blue, which was possible to observe by the naked eye.