Layered zinc(II) and cadmium(II) dicarboxylates with aromatic chelate ligand-syntheses, crystal structures and luminescent properties

摘要

Two new two-dimensional (2D) layered d(10) metal coordination polymers, [M(PDB)(2,2-bpy)], (M=Zn2+ (1) and Cd2+ (2), PDB pyridine-3,4-dicarboxylate), have been prepared by hydrothermal reaction and characterized by IR, TGA, and single-crystal X-ray diffraction analysis. Compounds 1 and 2 both exhibit puckered hexagonal (6,3) sheets and represent the first examples of 2D structures formed by PDB and chelate heterocyclic ligand. Furthermore, both of them show intense luminescent properties at room temperature. (c) 2005 Elsevier B.V. All rights reserved.