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室温下,AgNO3、4,4′-联吡啶(bpy)/1,2-二(4-吡啶基)乙烯(dpe)与联苯二甲酸(H2da)在乙酸/乙醇水溶液中反应数周后分别得到块状晶体[Ag2(bpy)2(Hda)2](HAc)2.2H2O(1)和[Ag2(dpe)2(da)]·4H2O(2)。上述两种晶体均包含无限扩展的一维阳离子链[AgL]∞(L=bpy和dpe),而穿插其中的有机阴离子da2-起到了平衡电荷的作用。结晶水分布于离子链之间并形成氢键,对晶体堆积起到了定位作用。UV/Vis/NIR漫反射光谱测定结果表明化合物1和2的光学能隙Eg均约为3.3 eV。
After several weeks of reaction of AgNO3, 4,4’-bipyridine (bpy) / 1,2-bis (4-pyridyl) ethylene and H2da in acetic acid / ethanol solution The bulk crystals [Ag2 (bpy) 2 (Hda) 2] (HAc) 2.2H2O (1) and [Ag2 (dpe) 2 (da)] · 4H2O (2) were obtained. Both of these two crystals contain an infinitely extended one-dimensional cationic chain [AgL] ∞ (L = bpy and dpe), while the interspersed organic anions da2- serve to balance the charge. Crystal water is distributed between ionic chains and forms hydrogen bonds, which plays a role in positioning the crystals. The UV / Vis / NIR diffuse reflectance spectroscopy results show that the optical gap Eg of the compounds 1 and 2 are both about 3.3 eV.