A Zn-MOF functionalized with alkyne groups: ultrasensitive detection of Cu+ and Pd2+ ions in aqueous medium

An alkyne-functionalized Zn-MOF functions as an ultrasensitive chemosensor for the detection of Cu + and Pd 2+ ions. The emission quenching is attributed to FRET due to the interaction of alkyne–π bonds with the d-orbitals of soft Cu + and Pd 2+ ions.