Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
J Am Chem Soc. 2010 Feb 3;132(4):1328-33. doi: 10.1021/ja907220f.
The synthesis and scanning tunneling microscopy (STM) investigations of shape-persistent arylene-ethynylene-butadiynylene macrocycles along with their codeposites with metallacycles are reported. 2D ordered arrays of macrocycles and macrocycle/metallacycle architectures (1:1) have been obtained on HOPG by self-assembly under ambient conditions. It is found that the ordered macrocycle array acts as a template for the deposition of the adlayer molecules. For each underlying macrocycle, one metallacycle has been detected. The unit-cell data of both, the macrocycles and their codeposites, show that the structural information of the macrocycle layer is perfectly transformed to the guest molecules. A rather unexpected observation is that the present compound could not be coadsorbed with C(60), indicating that only a minor change in the structure of the macrocycle has a dramatic effect on the ability of the monolayer to bind additional guest molecules.
本文报道了一类具有形状保持特性的芳基乙炔-丁二炔大环及其与金属环的共沉积的合成和扫描隧道显微镜（STM）研究。通过在环境条件下自组装，在 HOPG 上获得了大环和大环/金属环结构（1:1）的二维有序排列。结果发现，有序的大环阵列可以作为吸附层分子沉积的模板。对于每个底层大环，都检测到一个金属环。大环及其共沉积物的晶胞数据表明，大环层的结构信息被完美地转化到客体分子中。一个相当意外的观察结果是，目前的化合物不能与 C（60）共吸附，这表明大环结构的微小变化对单层结合额外客体分子的能力有显著影响。
