Phosphorus-Capped Metal Clusters: Molecular Building-Blocks for Extended Assemblies

该奖项在无机，生物无机和有机化学 该计划为辛西娅·K博士提供支持。Schauer of the 北卡罗来纳州查珀尔大学化学系 Hill，用于合成小分子的线性低聚物 金属-磷团簇 集群一般包含五个 具有羰基配体的铁和磷的原子框架。 各种各样的合成策略将被用来形成金属 桥连、磷-磷桥连和有机基团 桥链 这些反应利用了 当氢或三烷基甲硅烷基基团 从这个网站上删除。 的性质和反应性， 将研究所得低聚物，目的是 为聚合物链的反应性提供模型。 合成较长链的物质或含有 还将尝试使用磷古巴烷。 %%% 本研究试图寻找合成方法， 含有磷和金属的线性链的构建。 该项目是一个综合性的挑战， 兴趣 实用性可能在于短时间内 链，因此更容易表征，分子 揭示了长链聚合物的性质， 相同的连接单元。 这些化合物或 它们的类似物可能具有有趣的电子性质。

This award in the Inorganic, Bioinorganic, and Organometallic Program provides support to Dr. Cynthia K. Schauer of the Chemistry Department, University of North Carolina at Chapel Hill, for synthesis of linear oligomers of small metal-phosphorus clusters. The clusters generally contain five atom frameworks of iron and phosphorus with carbonyl ligands. A variety of synthetic strategies will be used to form metal bridged, phosphorus-phosphorus bridged, and organic group bridged chains. The reactions take advantage of the reactivity at the phosphorus atom when hydrogen or trialkylsilyl groups are removed from that site. The properties and reactivities of the resulting oligomers will be investigated, with the goal of providing models for the reactivity of polymeric chains. Synthesis of longer chained species or chains containing phosphorus cubanes will also be attempted. %%% This study attempts to find synthetic procedures for the construction of linear chains containing phosphorus and metals. The project is a synthetic challenge and is of fundamental interest. Utility may lie in the extent to which shorter chain, and therefore more easily characterized, molecules reveal the properties of longer chain polymers built from the same connecting units. It is possible that these compounds or their analogues may have interesting electronic properties.