各种三氮杂三氮杂环烯是通过对三氮杂三氮杂环鎓离子的中心 C 原子进行亲核攻击来合成的。分子功能,尤其是偶氮苯,通过三甲基甲硅烷基-炔烃的原位脱保护通过乙炔基接头固定。通过 X 射线晶体学进一步研究了其中两个分子的结构。在溶液中对偶氮苯取代衍生物的光诱导反式/顺式异构化进行了分析,并显示出制备可切换功能化单层的巨大前景,因为三氮杂三烯以其在金表面的自组装而闻名。[1] .
Mounting Freestanding Molecular Functions onto Surfaces: The Platform Approach
作者:Belinda Baisch、Diego Raffa、Ulrich Jung、Olaf M. Magnussen、Cyril Nicolas、Jerome Lacour、Jens Kubitschke、Rainer Herges
DOI:10.1021/ja807923f
日期:2009.1.21
A modular system has been developed to mount molecules upright onto metal surfaces in a well controlled geometry. The approach is based on a reactive platform (triazatriangulenium salt) with an electrophilic center. Functional molecules are attached via C-C bond formation. The distance from the surface can be varied by a spacer, and the distance of the functional units from each other by the size of the platform. Self-assembly of the parent triazaangulenium salt as welt as the functionalized platforms on Au(111) surfaces results in stable, hexagonally ordered adlayers.