Abstract:
Two new Naphthalimide based dipodal receptors K1 and K2
has been synthesized and selectively formed upon complexation with cobalt ion. Further, these cobalt complexes (K1.Co2+
and K2.Co2+) were fabricated to nanoaggregate in aqueous
medium. The stability of these nanoaggregates was established
with DLS, TEM, AFM and emission spectroscopy. The nanoaggregates N1-N2 were utilized to selectively sensing of
diethylcyanophosphonate in aqueous medium. The nanoaggregate N1 and N2 exhibit 2 fold enhancement in the emission
spectrum in presence of Diethylcyanophosphonate (DECP)
which is due to rigidity induced fluorescent enhancement. The
detection limit to be achieved for DECP is 21 nM in aqueous
medium. Additionally, the solution coated filter paper strip of
nanoaggregate N1 can detect DECP, thus providing very simple
and low coast sensing kit for DECP.
