Synthesis, structure, and luminescent properties of three silver(I) complexes with organic carboxylic acid and 4,4′-bipyridine-like ligands |
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| Authors: | Chong-Chen Wang Guang-Liang Guo Peng Wang |
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| Affiliation: | 1. Beijing Climate Change Response Research and Education Center, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
2. Key Laboratory of Urban Stormwater System and Water Environment (Ministry of Education), Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
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| Abstract: | The reactions of AgNO3 with combinations of 1,2-bis(4-pyridyl)ethane(bpa)/4,4′-bipyridine (bpy), 4,4′-stilbenedicarboxylic acid (H2sda)/2,2′-diphenylaminedicarboxylic acid (H2dpadc)/2,6-naphthalenedicarboxylic acid (H2ndc) in aqueous alcohol/ammonia at room temperature produce block-like crystals of [Ag2(bpa)1.5(sda)0.5](sda)0.5·7H2O, [Ag2(bpa)2(H2O)3](dpadc), [Ag2(bpy)2](ndc)·4H2O. All three complexes consist of 1D infinite silver–ligand cationic chains, interspersed with organic carboxylate anions that provide charge compensation in the crystal structures. The lattice water molecules are situated among the framework of the crystal structure and show rich hydrogen-bonding interactions, which help to orientate the organic carboxylate anions in the crystal packing, and the presence of Ag···N and Ag···Ag contacts contributes to strengthen the frameworks. The luminescent properties and thermogravimetric analyses of the three complexes are also presented. |
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