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中文摘要：
偶氮苯衍生物是一类典型的光功能材料，它的最重要的特性就是可逆的顺反异构以及相应的光致变色性质。在光开关、全息存储、捕光、长期能量储存和非线性发光材料等方面有广泛的潜在应用。利用本实验室在分子自组装方面的坚实基础以及SPM技术上的优势，集中研究以下几方面内容（1）设计合成含多种官能团的偶氮苯衍生物。例如偶氮双炔、偶氮卟啉多酸、偶氮三联吡啶以及偶氮四羧酸等化合物；（2）通过调控组装的成分，研究在HOPG表面上偶氮苯衍生物单组分、多组分的纳米组装结构。（3）通过外界环境的作用，如光照等，研究偶氮苯衍生物表面纳米组装结构的变化。（4）以偶氮苯衍生物为主体模板分子，选择合适的客体分子，进行表面的客体分子原位反应。通过这些研究，希望能够有助于解决上面提到的问题，从而实现偶氮苯衍生物表面可控纳米组装结构的构筑。
英文摘要：
scanning tunneling microscope (STM)；host-guest interactions；supramolecular self-assembly process；photo-stimulation；
结论摘要：
利用自组装方法来构筑功能性纳米结构，并对其加以调控是将来实现分子电子学和多功能光子器件的基础。偶氮苯衍生物是一类重要的光致变色分子，它们能在适当的光照射下发生可逆的顺-反异构。它们在很多领域包括光开关、全息存储、光收集、长期储能和非线性光学材料等有着广泛的应用。功能性分子、基于响应性的超分子纳米结构和基于分子模板调控的分子识别等可控建造是近二十年来最有挑战性的工作之一。在项目实施过程中，用扫描隧道显微镜研究了一系列表面二维自组装超分子主客体相互作用和化学反应，这些反应涉及到1) 光调控的表面化学反应； 2) 配位化学反应；3）Schiff-Base缩合反应和Knoevenagel反应等。可以预见研究这些反应有助于我们理解超分子自组装过程的机理并且进一步控制它们。
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