A series of literature known (1–3)[1–4] and new Si-tripodal receptors for anion sensing, based on 1–3 pyridylmethyl functionalized side arms as recognition sites, was designed, successfully synthesized and characterized by 1H and 13C NMR spectra (4–9). These ligands showed high selectivity and strong binding affinity toward investigated dicarboxyacid anions. The complexes formation was confirmed by 19F NMR spectra. All supramolecular ...