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

摘要

Two coordination polymers (CPs) {[Mg2L(mu(2)-H2O) (mu(2)-DMA)]center dot 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 M-O-C 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. (C) 2016 Elsevier B.V. All rights reserved.