Time dependence of water-induced phase transition in nano- and microcrystalline Eu 3+ -doped MOF-76(Y): different luminescence responses with memory effect

A deep study on the water induced-phase transition from the 3D MOF-76 structure to the 1D LnBTC coordination polymer is presented. The initial particle size of MOF-76(Y 0.95 Eu 0.05 ) has a lasting impact on the luminescence of the transformed material.