Dinuclear Reductive Elimination Reactions of Dimeric Platinum Complexes

一系列含桥联的二聚铂配合物 （二苯基膦基）膦（dppc）配体将是 制备并通过NMR光谱和X射线表征 衍射法 双核还原消除反应将 导致碳-碳键的形成，以及 这些过程将使用同位素标记进行研究 和变温NMR技术。 民进党桥 铂制将以两种方式发展。 第一个将 将一个或多个甲基引入到环戊二烯并 二烯基环。 这将提高协调能力， 配体和防止可逆的解离的环戊二烯并- 二烯基环，这似乎是双核的特征， 淘汰 第二，双（膦基）膦 配体将被制备并用于构建同-和异- 金属三聚和低聚络合物。 其中两 不同的金属存在于单一的复合物中， 与单独使用任一种金属所发现的不同。 %%% 在这个项目中，无机，生物无机和有机- 化学部金属计划，戈登K。 位于圣刘易斯的密苏里州大学的安德森将 制备用作催化剂的二聚铂络合物， 碳-碳键形成反应。 这种反应是 参与重整过程和燃料生产 基于乙烯、甲醇或合成气。此外，本发明还提供了一种方法， 含有许多不同元素的金属原子的络合物 将被合成用于相同的目的。

A series of dimeric platinum complexes containing bridging (diphenylphosphino)cyclopentadienyl (dppc) ligands will be prepared and characterized by NMR spectroscopy and X-ray diffraction. Dinuclear reductive elimination reactions will result in carbon-carbon bond formation, and the mechanism(s) of these processes will be investigated using isotopic labeling and variable temperature NMR techniques. The dppc-bridged platinum system will be developed in two ways. The first will be to introduce one or more methyl groups onto the cyclopenta- dienyl ring. This will enhance the coordinating ability of the ligand and prevent reversible dissociation of the cyclopenta- dienyl ring, which appears to be a feature of the dinuclear eliminations. Secondly, a bis(phosphino)cyclopentadienyl ligand will be prepared and used to construct homo- and hetero- metallic trimeric and oligomeric complexes. Where two different metals are present in a single complex, chemistry different from that found for either metal alone is expected. %%% In this project in the Inorganic, Bioinorganic, and Organo- metallic Program of the Chemistry Division, Dr. Gordon K. Anderson of the University of Missouri at Saint Louis will prepare dimeric platinum complexes for use as catalysts in carbon-carbon bond forming reactions. This type of reaction is involved in reforming processes and the production of fuels based on ethylene, methanol, or synthesis gas. In addition, complexes containing many metal atoms of different elements will be synthesized for the same purpose.