Syntheses and characterizations of two-dimensional polymers based on tetraimidazole tetraphenylethylene ligand with aggregation-induced emission property

• A new tetradentate imidazole-type ligand has been well investigated.
• Two new coordination polymers have been synthesized using novel ligand.
• A novel 2,4,4-connected 3-nodal topological architecture is generated.
• Complex 2 exhibits an intense emission at room temperature.

Two new coordination polymers [Co(TIPE)(H2O)2]·Hbtc·CH3CN·3H2O (1) and [Cd(TIPE)0.5(m-bdc)(H2O)]·CH3OH·H2O (2) (TIPE = tetra(3-imidazoylphenyl)ethylene, H3btc = 1,3,5-benzenetricarboxylate, m-H2bdc = 1,3-benzenedicarboxylate) have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, elemental analysis, IR, TGA, and PXRD. Furthermore, the luminescent properties of complexes 1, 2 and TIPE ligand have also been investigated in the solid at room temperature.

Two new coordination polymers [Co(TIPE)(H2O)2]·Hbtc·CH3CN·3H2O·(1) and [Cd(TIPE)0.5(m-bdc)(H2O)]·CH3OH·H2O·(2) based on multifunctional tetradentate imidazole-type ligand containing tetraphenylethene chromophore have been well investigated. The crystal structures and luminescence properties of complexes 1 and 2 have been investigated in detail.Figure optionsDownload as PowerPoint slide