Synthesis and Structural Characterization of Novel Main Group Compounds with Multiple Bonding

该奖项在无机，生物无机和有机化学 计划支持对新的主要群体进行持续调查 化学系的Philip P. Power博士在 位于戴维斯的加州大学。 的主要重点 本工作将是单体的合成和表征 以及在主要的聚合物之间含有多个键的聚合物物质 III族和V族元素。 在某些情况下，这两个元素都将是 系列中较重的成员，例如，在其他情况下， 只有一个成员将是后面的元素，例如，B-Sb或B-Bi。 特别注意环的合成 物种，其中可能发生离域键合。 在 加成、制备其它含有主基的化合物 多键合的III至VI族元素 将尝试。 例如，含有Al=C和 将制备Ga=C。 化合物的特征在于： X射线结构和NMR光谱。 %%% 含有硼族成员的新化合物和 将制备氮族化合物。 这些化合物很不寻常 因为它们的元素之间含有多个键 家庭 第二个键的强度将取决于 并与理论预测进行比较。 这些之间的联系 元素通常不存在于离散的分子中，但 常见于半导体或陶瓷材料中。 这 研究提供了一个机会，以了解更多的性质， 这样的结合，从而可以帮助指导设计的电子或 具有特殊性能的结构材料。

This award in the Inorganic, Bioinorganic, and Organometallic Program supports continued investigation on novel main group compounds by Dr. Philip P. Power of the Chemistry Department at the University of California at Davis. The primary focus of the work will be synthesis and characterization of monomeric and polymeric species containing multiple bonds between main group III and V elements. In some cases both elements will be heavier members of the series, e.g., In-P. In other cases, only one member will be a later element, e.g., B-Sb or B-Bi. Particular attention will be paid to the synthesis of ring species, in which delocalized bonding might occur. In addition, preparation of other compounds containing main group elements from groups III through VI which are multiply bonded will be attempted. For example, species containing Al=C and Ga=C will be prepared. Compounds will be characterized by X-ray structures and NMR spectrometry. %%% New compounds containing members of the boron family and the nitrogen family will be prepared. These compounds are unusual because they contain multiple bonds between elements of these families. The strength of the second bond will be determined and compared to theoretical predictions. Bonds between these elements do not usually occur in discrete molecules, but are common in materials used as semiconductors or ceramics. This research provides an opportunity to learn more about the nature of such bonding and thus may help guide design of electronic or structural materials with specific properties.