Study on novel biphenyl chalcone scaffolds: A dual spectroscopic approach for efficient sensing of hydrazine with low concentration

Hydrazine and its derivatives, as harmful substances, seriously risk the health of humans environment. On basis admirable luminescent properties low biological harmfulness biphenyl moiety, a moiety can be combined with naphthalene ring via chalcone scaffold easily traced by nucleophilic group. Therefore, chalcones (BPCs) decorated various systems fluorescent sensors for hydrazine are synthesised Claisen-Schmidt condensation. The present work describes comparative studies two different protocols synthesis three BPCs. structures all novel BPCs were investigated FT-IR, NMR, HRMS spectroscopy. These show red shift peak an enhancement in intensity increasing solvent polarity from hexane to methanol. Methanol shows strong fluorescence emission; therefore, methanol is used sensing experiments. display variation yellow blue after binding hydrazine. able identify fast response rate 5 min time. screening study soil samples prepared highly efficient. A pH dependence these probes excellent sensitivity range 10.