A bimodal 2D silver coordination polymer: Turn-on sensing of Cd^II and sensitization of lanthanide ions

Abstract The new transition metal coordination polymer, namely [Ag(Hcpna)]_n (1) (H₂cpna5-(4-carboxyphenyl) nicotinic acid) has been synthesized under hydrothermal conditions and characterized. Interestingly, when this compound was immersed in the different metal ion solutions, it shows highly selective sensing for Cd^{2 +} based on significant luminescence enhancement. What's more, the compound 1 can serve as an antenna for sensitizing the visible-emitting of the lanthanide cations to exhibit their characteristic emissions in solution.