New mixed-ligand copper(II) complex as a model for the metal-binding role of 2-aminomethylbenzimidazole, a chelating anchor group used in ion-exchanger polymers. Synthesis, molecular and crystal structure and properties of (2-aminomethylbenzimidazole)(iminodiacetato)copper(II), [Cu(IDA)(2AMB zImH)] | Publicación