Synthesis and Crystal Structure of a Two-Dimensional Zn(II) Coordination Polymer

Abstract

A new coordination polymer [Zn₂(PAA)₂(bib)]_n (H₂PAA= phthalic acid and bib= 4,4'-bis(2- methylimidazol-1-ylmethyl)biphenyl) has been synthesized by the hydrothermal method and characterized by X-ray single crystal diffraction. In compound [Zn₂(PAA)₂(bib)]_n, the phthalic acid acts as bridging ligands exhibiting two coordination modes to link metal ions: bis-monodentate and monoatomic bridging modes. The carboxylic groups bridge Zn(II) ions to an infinite one-dimensional framework. 4,4'-Bis(2-methylimidazol-1-ylmethyl)biphenyl) ligands coordinate to two Zn(II) centers to give rise to a two-dimensional net.