Synthesis, structure, characterization and multifunctional properties of a family of rare earth organic frameworks
A series of isomorphism 3D layered rare earth hydroxide (LREH) frameworks: RE3(OH)7(1,5-NDS) (RE = Y (1), Gd (2), Er (3), Yb (4); 1,5-NDS = 1,5-naphthalenedisulfonate) have been synthesized under hydrothermal condition. The crystal structure, thermal stability, photoluminescence and magnetic properties of these compounds have been investigated. The results demonstrate that the compounds are highly stable even at 351 °C and emit strong purple fluorescence whose colour can be tuned by the coordinated rare earth ions. Their magnetic susceptibilities have also been measured, leading the compounds to be promising multifunctional materials.