4-(4′-吡啶)-1,3-二硫代环戊烯-2-酮双核铜(Ⅱ)配合物的合成与晶体结构

用溶液法合成了4-(4′-吡啶)-1,3-二硫代环戊烯-2-酮(C8H5NOS2)与铜(Ⅱ)的配合物,并得到了单晶.通过红外光谱、元素分析和X射线单晶衍射分析对配合物的组成和结构进行了表征.X射线单晶衍射分析表明:配合物属三斜晶系,空间群P-1,是由2个CuSO4、4个配体C8H5NOS2分子、2个配位H2O和6个游离的H2O组成的双核配合物.配合物分子通过S…S短程作用形成了1个二维层状结构,并通过分子间的氢键作用进一步形成了更稳定的三维结构.     

二硫架桥的二聚四硫富瓦烯合成新方法及其电化学性质研究

以2-(2′-氰乙硫基)-3,6,7-三甲硫基四硫富瓦烯为原料,在四甲基氢氧化铵作用下,通过Mn2+离子催化偶联反应合成了1个二硫架桥的二聚四硫富瓦稀化合物1,化合物1的结构经红外光谱、扫描电子显微镜、元素分析、核磁共振氢谱、质谱进行了表征.循环伏安结果显示化合物具有2对明显的可逆氧化还原峰.为"桥式"四硫富瓦稀衍生物的合成提出了一种新方法.     

二硫代乙二酰胺合镍在硫化镉纳米晶表面的逐层配位组装

CdS nanocrystals, which were surface modified by poly (nickel dithioxamide) [Ni(DTO)]_n, were prepared and characterized. TEM image showed that the shape and the outward aspect of the modified CdS sample were essentially the same as those of the original material and no impurities were found. The characteristic IR peaks at 1 513cm^-1 and 870 cm^-1 confirmed the success in assembling [Ni(DTO)]_n on the surface of CdS. For XPS spectra, the characteristic bands of Ni2p3/2 and Ni2p1/2 appeared at 856 eV and 877 eV indicating the nickel in Ni(Ⅱ) oxidation state. The solid state electronic spectra showed the improvement in surface energy gap, which was changed from 2.38 eV to below 1.91 eV.