基于含硫化合物易于在贵金属表面形成分子膜的事实以及多头含硫有机分子有望成为新一代纳米自组装理想材料的预测,设计并合成了一系列几何形状、功能基数迥异,具有π共轭特征的刚性芳炔硫醚化合物1~7.通过MS,IR,1^H和13^CNMR对它们进行了结构表征.此外,对两个X型化合物参与纳米金自组装的行为进行了初步的考察.实验结果表明:多MeS-基有机分子具有良好的自组装和可拆卸效果.
Based on the facts that thio-compounds can easily form monolayers on the surface of nobel metals, and a reasonable expectation that function molecules bearing multi-thio groups may be suitable for the assembly of nanoparticles as mediators, some multi methylthio arylethynes of π-conjugetion, structural rigidity and different size/shapes were designed and synthesized. Their structures were characterized by MS, IR 1^H and 13^C NMR. The assemblies of gold nanoparticles mediated by two different X-shaped methylthio arylethynes have well exhibited the reversible behaviors of assembly and disassembly.