Photoluminescent metal–organic coordination polymer incorporating one-dimensional silver chains

Solution phase reaction of AgNO3 with a mixture of benzene-1,3,5-tricarboxylic acid (H3BTC) and heterocyclic 2-aminopyrimidine (APYM) under the ammoniacal conditions gives rise to a novel metal–organic coordination polymer Ag3(BTC)(APYM)2 (1). The structure of 1 possesses a unique three-dimensional (3D) framework with one-dimensional channels surrounded by carboxylato-supported Ag–Ag dimers, Ag–Ag chains, fully deprotonated [BTC]3− and APYM ligands. Moreover, 1 exhibits strong blue photoluminescence maximized at 464 nm at room temperature (λex = 383 nm) and upon cooling to 77 K, the emission spectrum seems narrowly red-shifted.

Graphical abstractSolution phase reaction of AgNO3 with a mixture of benzene-1,3,5-tricarboxylate (H3BTC) and heterocyclic 2-aminopyrimidine (APYM) under the ammoniac conditions gives rise to a novel metal–organic polymer Ag3(BTC)(APYM)2, which possesses a unique 3D framework with 1D porous channels surrounded by carboxylato-supported Ag–Ag dimers, Ag–Ag chains, fully deprotonated [BTC]3− and APYM ligands. Furthermore, this metal–organic polymer exhibits strong blue photoluminescence maximized at 464 nm upon 383 nm excitation at room temperature. And upon cooling to 77 K, the emission spectrum seems narrowly red-shifted.Figure optionsDownload full-size imageDownload as PowerPoint slide