Syntheses, structures and properties of metal-carboxylate chain-based coordination polymers (CPs) with 1,1′:4′,1″-terphenyl-2′,4,4″,5′-tetracarboxylate

•Two coordination polymers (Mg–CP and Ag–CP) have been synthesized.•The ligand is 1,1′:4′,1″-terphenyl-2′,4,4″,5′-tetracarboxylic acid (H4L).•The two CPs possess the metal-carboxylate chain-based 3D frameworks.•The Ag–CP exhibits a broad emission peak from 300 to 800 nm.

Two coordination polymers (CPs) {[Mg2L(μ2-H2O) (μ2-DMA)]·DMA}n (1), and [Ag4L(DMF)2]n (2) (H4L = 1,1′:4′,1″-terphenyl-2′,4,4″,5′-tetracarboxylic acid, DMA = N,N-dimethylacetamine, DMF = N,N-dimethylformamide) have been synthesized and structurally characterized. In 1 and 2, there exist a series of parallel aligned MOC chains, which are linked along two directions by para-terphenyl moieties of L4− ligands to lead to the metal-carboxylate chain-based three-dimensional frameworks. The photoluminescence properties of the compounds 1 and 2 have also been investigated. 1 displays blue-violet light emission with the emission maximum at 380 nm. 2 exhibits a broad emission peak from 300 to 800 nm with an emission maximum at 484 nm and some of the shoulder peaks.

Graphical abstractTwo coordination polymers based on 1,1′:4′,1″-terphenyl-2′,4,4″,5′-tetracarboxylic acid (H4L) have been synthesized. They feature metal-carboxylate chain-based three-dimensional frameworks, and their photoluminescence properties have also been investigated.Figure optionsDownload full-size imageDownload as PowerPoint slide