Three novel indium MOFs derived from dicarboxylate ligands: Syntheses, structures and photoluminescent properties

► Three new indium metal-organic frameworks have been solvothermal synthesized. ► The structural variation is attributed to the diverse coordination modes of ligands. ► Compounds 1-3 exhibit 1D double chain, 2D layer and 3D open-framework, respectively. ► These compounds exhibit strong solid-state luminescence emission at room temperature.