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Abstract
Two 1-D and 3-D Ag(I) complexes involving 2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylic acid (H3PIDC) have been characterized by infrared spectrum, elemental analysis, and single-crystal X-ray diffraction. [Ag2(HPIDC)]n (1), synthesized under hydrothermal conditions, gave a 3-D framework; [Ag2(HPIDC)(MBI)]n (2) (MBI = 2-methyl-1H-benzo[d]imidazole), with MBI as the second ligand, gave a 1-D zigzag chain and further formed a 3-D supramolecular structure through π···π interactions. The most interesting structural features of these complexes are the presence of C–H···Ag hydrogen bonding interactions and Ag···C weak interactions between the Ag centers and H3PIDC. Luminescence indicates that 2 has significantly stronger fluorescent emissions than 1 in the solid state at room temperature.
Two new complexes formulated as [Ag2(H2PIDC)]n (1) and [Ag2(HPIDC)(MBI)]n (2) {H3PIDC = 2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylic acid, MBI = 2-methyl-1H-benzo[d]imidazole} have been synthesized and characterized by infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The most interesting structural features of these complexes are the presence of obvious C–H···Ag hydrogen bonding interactions and Ag···C weak interactions between the Ag centers and H3PIDC ligands. In addition, their luminescent properties have been investigated in the solid state at room temperature.
