Bithiazole-bridged polysilsesquioxane and its metal complexes: synthesis and magnetic properties

A novel alkoxysilylated derivative based on 2,2′-diamino-4,4′-bithiazole (DABTH) was firstly synthesized. The corresponding polysilsesquioxane (PBSIBTH) and its metal complexes (PBSIBTH-Eu 3+ , PBSIBTH-Tb 3+ and PBSIBTH-Ni 2+ ) were also obtained via sol–gel method, respectively. The morphology of their xerogels was investigated by scanning electron microscopy means. The magnetic measurements of these polymer complexes show all obtained solid materials feature soft ferromagnet properties at low temperature. The metal ions in polymer complexes have a significant influence on both microstructure and magnetic properties.