A 2D In(III) Coordination Polymer with Extended In–OH–In Chains

Abstract

A new indium(III) coordination polymer [In(OH)(Hpdc)(H2O)] n (1) H3pdc = 3,5-pyrazole-dicarboxylic acid) has been synthesized under hydrothermal condition and characterized by the elemental analysis and single crystal X-ray diffraction. X-ray diffraction analysis reveals that 1 (C5H5InN2O6) crystallizes in the monoclinic space group P21/n, and features an interesting 2D layer constructed by 1D In–Hpdc chains and μ 2-OH ligands. Unit cell parameters for 1: a = 10.406(2), b = 6.326(2), c = 11.631(2) A, β = 104.0(1)°, and Z = 4. The title compound, [In(OH)(Hpdc)(H2O)] n (H3pdc = 3,5-pyrazole-dicarboxylic acid), was synthesized under hydrothermal condition by the treatment of InCl3·4H2O with 3,5-pyrazole-dicarboxylic acid and its crystal structure determined. Single crystal X-ray diffraction analysis reveals that the molecular structure of the title compound is an interesting 2D layer constructed by 1D In–Hpdc chains and μ2-OH ligands.