Synthesis and Characterization of Dicyanoanthracene- Substituted-Beta-Cyclodextrins

[9412515]将合成以9,10-二氰蒽系住、盖住并夹在-环糊精中间的超分子宿主。用荧光光谱法研究宿主与猝灭客体之间的相互作用。将开发几种分析方法来阐明静态和动态淬火成分。最终目标是确定导致强结合和大静态/动态淬火比的结构基序。这种载体将是理想的光诱导电子转移催化剂。这项来自有机动力学项目的拨款支持了威廉玛丽学院克里斯托弗·j·阿贝尔特教授的持续工作。一个能在紫外线照射下接受电子的垂坠式有机分子将与一个锥形碳水化合物分子结合。碳水化合物分子可以作为其他分子（客人）的宿主，这些分子可以容纳在这个锥形的宿主中。客体分子将是电子供体，因此在辐照时，电子将从客体分子转移到垂坠的有机分子。由于宿主分子的体积限制了客体分子的场，因此会发生选择性的电子转移。

9412515 Abelt College of William and Mary Supramolecular hosts in which 9,10-dicyanoanthracene is tethered, capped, and sandwiched with beta-cyclodextrin will be synthesized. The interaction between the hosts and quenching guests will be studied by spectrofluorimetry. Several analytical methods will be developed to elucidate the static and dynamic quenching components. The ultimate goal is to identify the structural motifs that lead to both strong binding and a large static/dynamic quenching ratio. Such hosts will be ideal as photoinduced-electron-transfer catalysts. This grant from the Organic Dynamics Program supports the continuing work of Professor Christopher J. Abelt at the College of William and Mary. A pendant organic molecule, which can accept electrons upon ultraviolet light irradiation, will be bonded to a conically-shaped carbohydrate molecule. The carbohydrate molecule can act as a host to other molecules (guests) that can fit into this conically-shaped host. The guest molecules will be electron donors so that upon irradiation, an electron will be transferred from the guest to the pendant organic molecule. Since the volume of the host limits the field of guest molecules, selective electron transfer will occur.