Sensing Organic Small Molecules. Re

Sensing Organic Small Molecules. Recently, it has beendemonstrated that luminescent MOFs are very promising tosense small organic molecules because of their sensitivity, quickresponse, selectivity, operability, and reversibility. 7 Complexes2 and 3 are unstable when soaked in organic solvents oraqueous solutions. The stable crystalline nature and structuralintegrity combined with the excellent luminescence propertiesof 1 prompted us to explore its utilization such as in thesensing of small organic molecules. To evaluate the potentialapplication of 1 to detect NACs, the photoluminescentproperties of 1 dispersed in common solvents DMA, DMF,THF, CH 3 CN, MeOH, EtOH, DCM, Diox, and acetone wereinvestigated. To do this, 1 (2 mg) was finely ground into apowder, then soaked in a variety of organic solvents (2 mL),and ultrasonicated for 0.5 h to form stable suspensions forluminescence measurement. As portrayed in Figures 7 and S25,the emission intensities of 1 are strongly regulated by thesolvent molecules, in which acetone displays a significantquenching effect.