Main Group and Transition Metal Heterocyclynes

该奖项在无机、生物无机和有机金属化学项目中获得，支持dr。阿克伦大学化学系的Claire A. Tessier和Wiley J. Youngs说。将Si、Ge、B、Al、Ga、In、P、as和Pt等杂原子加入到配合物的环状结构中，并将过渡金属与环中可用的C-C多键结合，制备出新的配合物。特别强调的是制备含有两个杂原子的环，合成含有路易斯酸和路易斯碱的双口袋杂环，以及使用更大的双口袋制造更大的口袋。一些铂链配合物的非线性光学、导电和液晶特性将被确定。人们还将尝试构建复杂的管状聚合物结构，这种结构可能具有有趣的电子特征。多核磁共振是这项工作的重要分析工具。杂环烷是除碳外还含有不同元素或杂原子的环状聚炔。本文所研究的系统包含三个炔与三个间隔键连接在一起，其中一个是杂原子，形成一个平面11元环。这个环的空腔，或口袋，随着杂原子的变化而变化。通过将杂环连在一起，可以形成更复杂的结构，这样它们就包含了多达四个口袋。这种化合物可以以可控的方式制造，并构建成具有导电和液晶特性的更大结构。

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.