A novel lariat-silacrown ether based in sol-gel process: synthesis, characterization and interaction study with the copper(II) ion

摘要

The synthesis and characterization of the laniat-silacrown ether (Silal5NH—IUPAC name: 3-[l-[[l-(3-arninopropyl)-2,5,8,ll,14-pentaoxa-l-silacyclotetrade c-l-yl] oxy]-2,5,8,l 1,14-pentaoxa-l-silacyclotetradec-l-yl] propan-1-amine) and its complex with copper(II) ion, Cu(II)-Silal5NH, are reported in this work. Tetraethylene glycol, 3-aminopropyl triethoxysilane and metallic sodium were employed as precursors and the lariat-silacrown ether obtained in a good yield (64 %) was characterized by elemental analysis, infrared spectroscopy (FTIR) and nuclear magnetic resonance of ~1H, ~(13)C and ~(29)Si. The Cu(II)-Silal5NH was characterized by elemental analysis and FTIR. The straightforward Cu(II) complex formation suggests this property could be explored for analytical purposes.