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

A, Ashalatha ; Sudarsanakumar, MR ; Satheesh Chandran, PR ; Danya, V S

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.


Keyword(s)

Metal- organic framework; Gel diffusion technique; 5 -aminoisophthalic acid;  praseodymium complex.


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