Synthesis, characterization, single-crystal X-ray study and sensing properties of a designed dinuclear Cu(II) system

Nitro group-containing compounds such as Nitrobenzene (NB) can cause serious health issues to human health and tremendous damage to our ecosystems. Therefore, the sensitive detection of NB for better environment and human health is the need for an hour. In an attempt, we have designed a new dinuclear paddle wheel Cu(II) complex (AZ-1) using the slow evaporation method. The design AZ-1 was characterized by various spectral studies such as FTIR, UV-Visible, PXRD, and single-crystal X-ray analysis. The AZ-1 was then dipped in different organic solvents and checked for its emission spectra. The fluorescent intensity of AZ-1 was significantly quenched in NB solvent even at very low concentrations. Thus, this works to open a new door for coordination chemists to design and characterize a more straightforward and cost-effective metal-ligand system that can detect organic solvent using the fluorescent sensing method in future efforts.

Automated summary

By designing a new dinuclear paddle wheel Cu(II) complex called AZ-1, a fluorescent sensing method was used to detect the concentration of nitrobenzene solvent. The fluorescent intensity of AZ-1 was found to be significantly quenched even at very low concentrations of nitrobenzene. This opens up new possibilities for coordination chemists to design and characterize a more straightforward and cost-effective metal-ligand system for future efforts in organic solvent detection.