Organosilanes: Synthesis and modification to magnetic silica nanoparticles for recognition of Hg (II) ions

Abstract

The present article incorporates synthesis, photophysical and complexation studies of new series of pyridine tethered Organosilicon derivatives tailored via click methodology. The synthesized compounds were well characterized by using IR, NMR (1H and 13C) spectroscopy and Mass spectroscopy. Furthermore, the selective binding of Organosilane with Hg2+ ions was substantiated by UV–Vis’s absorption and fluorescence spectra analysis when examined for the recognizable ability towards numerous transition metal ions. Moreover, a convention for immobilizing Organosilane (5b) over the surface of magnetic silica nanoparticles has also been discussed. The resulting organic–inorganic hybrid nanoparticles (H-NPs) were distinguished by various physicochemical and analytical techniques and these nanocomposites also showed great fondness towards Hg2+ ions with LOD value of 4.2 × 10−7 M whereas organosilane shows a value of 6.3 × 10−6 M. Quantum mechanical calculations were performed for the justification of geometry and stability of the complex using DFT at B3LYP in addition with LanL2DZ basis set. Pharmacokinetic investigation of the prepared compounds was additionally examined utilizing MOLINSPIRATION and ADMET programming which gave promising outcome.