A novel XXXX : Synthesis, structural characterisation and comparative sensor studies for metal ion detections.

@entity8862 @entity10694 @entity596 @entity1025 @entity8863 @entity3280 @entity3281 @entity7352 @entity2716 @entity515 @entity3364 @entity3411 @entity23134 @entity71812 @entity18839 @entity6597 @entity10781
A novel @entity3364 ligand was synthesized by the condensation reaction of @entity71812 and @entity23134 in @entity2716 and characterised by its melting point, elemental analysis, FT-IR, (1)H, @entity7352 NMR and mass spectroscopic studies. Molecular structure of the ligand was determined by single crystal X-ray diffraction technique. The electrochemical properties of the @entity3364 ligand were studied in different solvents at various scan rates. Sensor ability of the @entity3364 ligand was investigated by colorimetric and fluorometric methods. Visual colour change of the ligand was investigated in @entity2716 solvent in presence of various metal ions Na(+), @entity1025 , @entity18839 , K(+), @entity6597 , @entity3281 , @entity596 , @entity515 , @entity3411 , @entity8863 , @entity8862 , @entity3280 , @entity10694 and @entity10781 . Upon addition of @entity18839 ion into a @entity2716 solution of the ligand, an orange colour developed which is detectable by naked eye. Fluorescence emission studies showed that the ligand showed single emission band at 630-665nm upon excitation at 560nm. Addition of metal ions Na(+), @entity1025 , K(+), @entity6597 , @entity3281 , @entity596 , @entity515 , @entity3411 , @entity8863 , @entity8862 , @entity3280 , @entity10694 and @entity10781 (1:1M ratio) cause fluorescence quenching, however addition of @entity18839 resulted in an increase in fluorescence intensity. No significant variation was observed in the fluorescence intensity caused by @entity18839 in presence of other metal ions. Therefore, the @entity3364 ligand can be used for selective detection of @entity18839 ions in the presence of the other metal ions studied.
