Pyridylmethylsilanes as dicarboxyacid receptors: Experimental and theoretical study
摘要:
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 H-1 and C-13 NMR spectra (4-9). These ligands showed high selectivity and strong binding affinity toward investigated dicarboxyacid anions. The complexes formation was confirmed by F-19 NMR spectra.All supramolecular complexes were structurally authenticated using parametric method 5 (PM5) with the MO-G for SCIGRESS program. The results brought information of the type and nature of intermolecular interactions present in the complexes and extended structures. (C) 2012 Elsevier B.V. All rights reserved.