Here, we demonstrate the assembly of a new stable lanthanide-based metal-organic framework (MOF), Eu(HDPB)(phen) (1) (HDPB = (1,1ʹ:3ʹ,1ʹʹ-terphenyl)-3,3ʹʹ,5,5ʹʹ-tetracarboxylic acid, phen = 1,10-phenanthroline), with a three-dimensional framework under solvothermal conditions. 1...