Abstract
Four new coordination complexes with silver(I) ions and nitrogenous aromatic heterocyclic carboxylic ligands, namely [Ag4(pztc)(phen)4]·8H2O (1), {[Ag4(pztc)(bpe)3]·5H2O}n (2), [Ag4(Hmptc)2(4,4′-bpy)3]·4.5H2O (3), and [Ag2(H2mptc)2(2,2′-bpy)2] (4) (H4pztc=pyrazine-2,3,5,6-tetracarboxylic acid, H3mptc=6-methyl-2,3,5-pyridine-tricarboxylic acid, phen=1,10-phenanthroline, bpe=trans-1,2-bis(4-pyridyl)ethylene, 4,4′-bpy=4,4′-bipyridine, 2,2′-bpy=2,2′-bipyridine), have been synthesized by the self-assembly reactions and characterized by X-ray diffraction single crystal structure analysis, elemental analysis, IR, PXRD, fluorescence and thermal analysis. In 1, four crystallographically independent silver(I) atoms are found to coordinate with only one pztc4− ligand. Complex 2 is a 2D grid structure. Complexes 3 and 4 are extended from 0D to 2D or 1D by the Ag⋯O interactions.
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