Superreduced Compounds of the Early Transition Metals

使用单环芳烃自由基阴离子，如 有机金属化合物中苯、甲苯和均三甲苯的那些 将进行综合开发。 这些都是非常有效的 还原剂，能够将所有已知的d-和 f-区过渡金属离子到零价或低价芳烃 配合物 最近在这个实验室里， 各种零价4族羰基化合物提供了一种机会， 探索这些元素的化学性质 未知氧化态 目标将是探索 的化学、电化学和结构特性， 这些化合物以及类似的第5族羰基化合物， 确定这些新材料是否会成为有用的试剂 在无机、有机金属或有机合成中。 可能 将这项研究扩展到第3族元素Sc，Y和 卢，其中没有羰基是目前已知的，将是一个 研究的重要组成部分。 %%% 在这个项目中，无机，生物无机和有机- 金属计划的化学部，博士约翰E。埃利斯 明尼苏达大学的研究人员将继续研究 用于制备高纯度的前过渡金属， 还原氧化态。 化学、电化学和 将探索这些化合物的结构性质。 这些高度还原的金属离子可能被证明是有用的试剂 在无机、有机金属和有机合成中。

Methods for the use of monocyclic arene radical anions, such as those of benzene, toluene, and mesitylene, in organometallic synthesis will be developed. These are extraordinarily potent reductants, which are capable of converting all known d- and f-block transition metal ions to zero or lower valent arene complexes. The recent availability in this laboratory of a variety of zerovalent group 4 carbonyls provides an opportunity to explore the chemistry of these elements in previously unknown oxidation states. The objectives will be to explore the chemical, electrochemical, and structural properties of these compounds as well as analogous group 5 carbonyls and to determine whether these new materials will be useful reagents in inorganic, organometallic, or organic synthesis. Possible extension of this research to the group 3 elements Sc, Y, and Lu, for which no carbonyls are presently known, will be an important component of the research. %%% In this project in the Inorganic, Bioinorganic, and Organo- metallic Program of the Chemistry Division, Dr. John E. Ellis of the University of Minnesota will continue to develop methods for the preparation of early transition metals in highly reduced oxidation states. The chemical, electrochemical, and structural properties of these compounds will be explored. These highly reduced metal ions may prove to be useful reagents in inorganic, organometallic, and organic synthesis.