Systematic Metallaborane Chemistry

圣母大学化学系的托马斯·P·费尔纳博士得到化学系无机、生物无机和有机物计划的支持，用于合成含有主族和过渡金属原子的新簇。该项目有几个目标。金属促进的单硼烷缩合反应将被开发为官能化硼烷和碳硼烷的路线，并且这些配体将用于制备金属-烯丙基络合物的类似物。在这方面，硼烷片段将被用作一个复杂的辅助配体，其影响在金属中心的有机化学的能力将被评估。镧系元素-硼和过渡金属-铝络合物将通过金属卤化物与单硼烷反应来制备。这些物种与小分子的反应将进行研究，其中一个目标是由氢驱动的金属支持的B-H还原。当与含碳取代基结合时，过渡金属的化学是有机金属化学的广阔领域的基础。在这一领域的研究已经导致了许多进展， 应用化学该项目旨在开辟一个过渡金属与含硼单元相结合的相关领域。初步 结果表明，这些“金属硼烷”将具有广泛的 有机金属化学在某些方面类似于有机金属化学，但在其他方面又非常不同。在这项研究中，将制备新的硼烷和过渡金属的组合，并研究它们的化学性质。 研究了新化合物将在新的反应化学中表达其电子结构的独特方面。

Dr. Thomas P. Fehlner, Department of Chemistry, University of Notre Dame, is supported by the Inorganic, Bioinorganic, and Organometallic Program of the Chemistry Division for the synthesis of new clusters containing both main-group and transition-metal atoms. The project has several goals. Metal facilitated monoborane condensation reactions will be developed as routes to functionalized boranes and carboranes and these ligands will be used to prepare analogs of metal-allyl complexes. In this regard the borane fragment will be used as a complex ancillary ligand and its ability to influence organic chemistry at the metal center will be evaluated. Lanthanide-boron and transition metal-aluminum complexes will be prepared by metal halide reactions with monoboranes. The reactions of these species with small molecules will be investigated, with one objective being metal supported B-H reductions driven by dihydrogen. The chemistry of the transition metals when combined with carbon containing substituents is the basis of the vast field of organometallic chemistry. Research in this area has led to many advances in pure and applied chemistry. This project aims to open a related area in which transition metals are combined with units containing boron. Preliminary results indicate that these "metallaboranes" will possess an extensive chemistry that in some ways resembles organometallic chemistry, but in other ways is very different. In this investigation new combinations of boranes and transition metals will be prepared and their chemistry investigated. The new compounds will express the unique aspects of their electronic structures in new kinds of reaction chemistry.