Main Group and Transition Metal Heterocyclynes

该奖项在无机，生物无机和有机化学 项目支持Claire A. 泰西耶和威利·J·杨斯（Wiley J. Youngs）， 阿克伦 通过引入杂原子， 作为Si、Ge、B、Al、Ga、In、P、As和Pt引入到该化合物的环状结构中。 络合物，并通过将过渡金属与可用的C-C 环中的多个键。 将特别强调准备 含两个杂原子的环，双口袋杂环炔的合成 其含有刘易斯酸和刘易斯碱，以及使用较大的 diynes创造更大的口袋。 非线性光学、传导和 一些铂链配合物的液晶特性将是 测定 还将尝试建造复杂的管状 可能具有有趣的电子特征的聚合物结构。 多核核磁共振是这项工作中的重要分析工具。 杂环炔是环状聚炔，除了碳， 含有不同的元素或杂原子。 这里调查的系统 含有三个由三个间隔基连接在一起的炔，其中一个 是杂原子--形成平面的11元环。 这个洞 环或口袋的大小随着杂原子的变化而变化。 更 通过将杂环炔连接在一起可以形成复杂的结构， 它们包含多达四个口袋。 所述化合物可以在一个实施方案中制备。 控制的方式，并建立了更大的结构， 液晶性质。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on heterocyclyne complexes by Drs. Claire A. Tessier and Wiley J. Youngs of the Chemistry Department, University of Akron. New complexes will be prepared by incorporating heteroatoms such as Si, Ge, B, Al, Ga, In, P, As and Pt into the cyclic structure of the complexes, and by associating transition metals with available C-C multiple bonds in the ring. Special emphasis will be placed on preparing rings containing two heteroatoms, on synthesis of dipocket heterocyclynes that contain both a Lewis acid and a Lewis base, and on using larger diynes to create larger pockets. The non-linear optical, conducting, and liquid crystal characteristics of some platinum chain complexes will be determined. Attempts will also be made to build complex tube-like polymer structures that may have interesting electronic features. Multinuclear NMR is an important analytical tool in this work. Heterocyclynes are cyclic polyalkynes that, in addition to carbon, contain a different element, or heteroatom. The system investigated here contains three alkynes linked together with three spacers--one of which is the heteroatom--to form a planar 11-membered ring. The cavity of this ring, or pocket, varies in size as the heteroatom changes. More elaborate structures can be formed by linking heterocyclynes together, so that they contain up to four pockets. The compounds can be made in a controlled way and built up to larger structures that have conducting and liquid crystalline properties.