A spectroscopic study of Cu(II)-complexes of chelating resins containing nitrogen and sulfur atoms in the chelating groups

摘要: Abstract The structures of different Cu(II)-thiol, dithiocarbamate, methylthiourea and amino complexes have been investigated on the basis their spectroscopic properties. influence chemical structure, both nature functional groups spacers, resin chelating behaviour towards Cu(II) ions in diluted solution has evaluated. resins are macroporous polystyrene–divinylbenzene polymer functionalized with two spacer groups, poly(ethylene glycol) imine) chains, supporting thiol, groups. Electron paramagnetic resonance (EPR) was employed to show coordination into complexes. Cu(II)-dithiocarbamate a square planar dithiocarbamate bound metal. as group form Cu(II)-complexes tetragonal symmetry four nitrogen atoms equatorial ligands. Further, partial reduction diamagnetic Cu(I) formation Cu(I)-methylthiourea complexes, where copper is S-bonded group, could be suggested. In Cu(II)-thiol through sulfur bridges.