摘要

A luminescent europium metal-organic framework [Eu(HL)(L)(H2O)(2)]center dot 2H(2)O (1) (H2L = (2,3-f)-pyrazino(1,10)phenanthroline-2,3-dicarboxylic acid) with uncoordinated phenanthroline nitrogen sites was hydrothermally synthesized. It exhibits highly sensitive and selective sensing of Cu2+ in aqueous solution. To the best of our knowledge, complex 1 is the first luminescent Eu-MOF with uncoordinated phenanthroline nitrogen sites for selective sensing of Cu2+ in aqueous solution. The probable sensing mechanism was discussed in detail.