Two unprecedented strontium(II) and cadmium(II) MOFs constructed from 2-naphthyl imidazole dicarboxylate ligand

Solvothermal reactions of nitrate salts with the promising multifunctional organic ligand, 2-(2-naphthyl)-1H-imidazole-4,5-dicarboxylic acid (H3NIDC), lead to two new polymers, [Sr(mu(5)-HNIDC)(H2O)](n) (1) and [Cd(mu(3)-HNIDC)(CH3CH2OH)](n) (2). Polymer 1 exhibits a sheet structure containing infinite distorted hexagonal rings. Polymer 2 presents an interesting 3D open architecture possessing infinite one-dimensional channels. The thermal analyses and solid-state photoluminescence properties of polymers 1 and 2 have been investigated as well.