New Architectures of Polycyclic Aromatic Compounds

这项研究的重点是开发生产螺旋烯的合成方法。 通过烯炔-联烯的自由基环化反应，可以制备出各种4，5-二取代菲衍生物、螺烯以及相关的具有螺旋结构的非平面多环芳烃。 烯炔-联烯的合成也将用于合成桥连双（苯并芴），其反过来将用作生产第4族金属的柄型-茂金属络合物的前体。 后者在烯烃聚合中有潜在的应用。有了这个奖项，有机和大分子化学计划将支持龚K博士的研究。他在西弗吉尼亚大学化学系工作。 王博士将专注于开发具有螺旋扭曲的多环芳烃（螺旋烯）的合成方法。 螺旋烯本质上是手性的，形成了一类具有有趣的光学和电子性质的材料。这项工作的更广泛影响是在材料科学领域以及不对称催化领域。 此外，该项目为培训本科生，特别是代表性不足的人口和研究生提供了一个很好的工具。

The focus of this research involves the development of synthetic methods for the production of helicenes. A variety of 4,5-disubstituted phenanthrene derivatives, helicenes and related nonplanar polycyclic aromatic hydrocarbons possessing a helical twist will be prepared via the radical cyclization reactions of enyne-allenes. Thermolysis of enyne-allenes will also be used to synthesize bridged bis(benzofluorene), which, in turn, will serve as precursors for the production of ansa-metallocene complexes of group 4 metals. The latter have potential use for olefin polymerization.With this award, the Organic and Macromolecular Chemistry Program is supporting the research of Dr. Kung K. Wang in the Department of Chemistry at West Virginia University. Dr. Wang will focus his work on developing methodology for the synthesis of polycyclic aromatic hydrocarbons possessing a helical twist (helicenes). The helicenes are inherently chiral and form a class of materials having interesting optical and electronic properties. The broader impact of the work is in the area of materials science as well as in the field of asymmetric catalysis. Further, the project presents an excellent vehicle for the training of both undergraduate students, especially those from underrepresented populations, and graduate students.