The first lanthanide carboxylate complex constructed from hydroxyl bridging bimetallic units: Hydrothermal synthesis, crystal structure and luminescent properties

One novel terbium complex [Tb2(Dinic)2(phen)2(OH)2(H2O)2]n · 3nH2O (1) has been synthesized by hydrothermal method, where Dinic = 3,4-pyridinedicarboxylate and phen = 1,10-phenanthroline. X-ray crystallography reveals that complex 1 possesses a one-dimensional chain structure constructed from OH− bridging binuclear units, and hydrogen bonding between chains result in a 3D network. The fluorescent properties of complex 1 were investigated in the crystal state.