Synthesis and crystal structure of a new acetate bridged metal-organic framework constructed by Pr (III) with 5-aminoisophthalic acid- [Pr(CH3COO)(AIP)(H2O)2]n . nH2O

Abstract

A novel acetate bridged lanthanide complex [Pr(CH₃COO)(AIP)(H₂O)₂]_n .nH₂O (PAIT) (H₂AIP=5-aminoisophthalic acid)  has been synthesized at room temperature by gel  diffusion technique using hydro silica gel and structurally characterized by single crystal X-ray  diffraction (CIF file CCDC no. 1857252). The title compound crystallizes in monoclinic space group, P2₁/c with a=10.5618(8) Å, b =12.1510(9) Å, c =10.7510(9) Å, α =90°, β =94.696(6) ° , γ=90°. The Pr³⁺ ion is coordinated by O₉ donor sets to form distorted tricapped triagonal prism geometry. Its structure features a 3D polymeric network possessing ‘S’ shaped hydrophilic pores.