Design and Construction of a Metal-Organic Framework as an Efficient Luminescent Sensor for Detecting Antibiotics

We first design and synthesize a dendritic aromatic 6-carboxyl linker (H6TDCPB), which is successfully assembled with Cd(II) ion to construct a porous metal-organic framework with a raw Cd-6 cluster, {[Cd-3(TDCPB)center dot 2DMAc]center dot DMAc center dot 4H(2)O}(n) (namely, complex 1). More interestingly, six adjacent linkers are packed together by pi-pi-stacking interactions to form an amazing six-molecule accumulation in the crystal structure. By virtue of high stability and luminescent properties, the as-synthesized sample not merely owns an excellent detectable ability but also possesses an outstanding selectivity for nitrofurans with remarkable recursitivity.