Syntheses, structures, thermal stabilities and photoluminescent properties of three silver(I) complexes of 2-ethyl-3-methylpyrazine and different aromatic dicarboxylates with various silver units
- 化学化工－已发表论文 
Three new silver(I) coordination compounds based on 2-ethyl-3-methylpyrazine (epyz), [Ag-2(epyz)(pta] (1), [Ag-4(epyz)(2)(ipa)(2)] (2) and [Ag-8(epyz)(4)(npa)(4)] (3, H(2)pta = o-phthalic acid, H(2)ipa = m-phthalic acid, H(2)npa = 1,4-napthalenedicarboxylic acid), have been synthesized and have been characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. Complex 1 shows a two-dimensional network comprising Ag-2 units linked by the organic ligands. In complex 2, tetrahedral Ag4 units are bridged by the organic linkers into a double-layer structure. In complex 3, the chains with alternating Ag-3 and Ag-5 units are connected by the organic ligands into a three-dimensional framework. The structural diversity of these compounds and the Ag units is highly dependent on different carboxylates and the coordination modes of the epyz ligand. The thermal stabilities and photoluminescence behaviors of these complexes were also discussed.