Abstract
A novel chromone based effectual molecular receptor S has been synthesized according to the excited state intramolecular proton transfer (ESIPT) and are shown the remarkable aggregation-induced emission enhancement (AIEE) in aqueous medium. S1 can be observed as fluorescent sensor for relay recognition of Cu2+ and CN− in aq. medium (10 mM HEPES buffer pH-7.4). Additionally the S1 was mimic as the function of a sequential logic circuit at molecular level based on “On–Off–On” sensing behavior by the inputs of Cu2+ and CN−. Further both S1 and S1-Cu2+ complex shows the antimicrobial activities against fungi: Bipolaris oryzae and Rhizoctonia solani using agar well diffusion method.
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