Two novel anionic indium–tetracarboxylate frameworks: Syntheses, structures and photoluminescent properties

Two unusual indium–organic frameworks, InMOF-1 and InMOF-2, have been successfully obtained by solvothermal reaction of trivalent indium ions and two flexible aromatic tetracarboxylate ligands. These compounds were characterized by single-crystal X-ray diffraction, IR spectroscopy, and powder X-ray diffraction (PXRD) measurement. In virtue of tetrahedral tri-positive and tetra-negative building blocks, their frameworks both exhibit anionic feature and are isomorphous in topology: twofold interpenetrating dia three-dimensional (3D) frameworks. Additionally, their solid-state photoluminescent properties have also been further investigated.

Graphical abstractAssembly of tetrahedral tri-positive and tetra-negative building blocks affords two novel anionic InMOFs, possessing twofold interpenetrating dia three-dimensional frameworks and good blue luminescent properties.Figure optionsDownload full-size imageDownload as PowerPoint slide