A novel three dimensional 3d–4f heterometallic coordination framework with 2, 2′-bipyridine-3-carboxylate and oxalate ligands

Metallo‐Ligand Based 3d/4f Coordination Polymers: Synthesis, Structure and Magnetic Properties

“…[1][2][3][4][5][6][7][8][9] The combination of 3d and 4f metal ions may result in either discrete polynuclear metal complexes exhibiting high spin ground states and in several occasions single-molecule magnet behavior or in polymeric species. [36][37][38][39][40][41][42][43][44][45] Discrete polynuclear 3d/4f compounds are usually obtained by the so called "self-assembly process" where the 3d metal ion, the lanthanide ion and the ligand(s) are mixed together in an one-pot reaction system. Polymeric 3d/4f complexes have also been isolated by such an in situ synthesis.…”

“…Polymeric 3d/4f complexes have also been isolated by such an in situ synthesis. [36][37][38][39][40][41][42][43][44][45] Nevertheless, there have been several reports of polymeric 3d/4f species obtained by the so called "metal complex as ligand" strategy, where a pre-isolated metal complex serves as a "metalloligand". [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61] This strategy is based on ligands with usually N and O donor atoms on their inner shell and N or O atoms on their outer shell.…”