Complexes in Which sp Carbon Chains Span Two Transition Metals

犹他州大学化学系的John A.Gladysz博士 由无机，生物无机和有机化学 程序，以调查复合物中的sp杂交碳链 原子跨越两个过渡金属。该项目的目标是 合成其中线状sp杂化碳链 连接两个过渡金属端基。M（CC）nH去质子化后 与金属卤化物的反应将使两种金属通过偶联键连接， 数碳链，同时与配位的一氧化碳反应 随后羰基脱氧将产生具有奇数个 碳原子数。一系列准备工作将旨在 生产具有多种特性的所需金属-聚炔基起始材料 碳链的长度。的电荷转移和氧化还原化学 将测定二金属物种以确定链长的影响 对配合物的结构和电子性质的影响。 本研究所针对的化合物含有两种金属， 通过仅由碳原子组成的长链连接。这些 链可以作为“导线”，通过它电子或磁 信息可以从一种金属转移到另一种金属。因此他们 可以形成微电子器件的基础， 了解分离的金属如何相互影响 通过延伸的连接单元。

Dr. John A.Gladysz, Chemistry Department, University of Utah, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program, to investigate complexes in which chains of sp hybridized carbon atoms span two transition metals. The objective of the project is to synthesize complexes in which wire-like sp hybridized carbon chains connect two transition metal end groups. After deprotonation of M(CC)nH the reaction with metal halides will link the two metals through an even number carbon chain, while reaction with coordinated carbon monoxide followed by deoxygenation of the carbonyl will yield a link with an odd number of carbon atoms. A series of preparations will be designed to produce the requisite metalla-poly-ynyl starting materials with a variety of carbon chain lengths. The charge transfer and redox chemistry of the dimetalla species will be determined to define the effect of chain length on the structure and electronic properties of the complexes. The compounds targeted in this investigation contain two metals that are linked through a long chain that consists solely of carbon atoms. These chains can serve as 'wires' through which electrons or magnetic information can be transferred from one metal to the other. As such they can form the basis for micro-electronic devices and for the basic understanding of how well separated metals can influence one another through extended linking units.