Synthesis, structure, and luminescence of a novel lead(II) coordination polymer with 1,2-phenylenediacetic acid

摘要

A coordination polymer [Pb2(phda)2]_n (H2phda = 1,2-phenylenediacetic acid) was synthesized and characterized by single crystal X-ray diffraction. The complex has a (6,6)-connected 2D framework with topology of (4~(15)), in which Pb~(2+)...π interaction is observed. The 2D framework is further assembled by C-H...π interactions, resulting in a 3D supramolecular network. The fluorescence of the complex is assigned to the intraligand π~*-π transition and the ligand-to-metal charge transfer.