The Synthesis, Characterization and Reactivity of Alkaline-Earth Derivatives Containing Metal-Metal Bonds

锡拉丘兹大学化学系Karin Ruhlandt-Senge博士获得化学学部无机、生物无机和有机金属化学项目的研究计划资助，致力于探索碱土与另一种金属结合的化合物的制备。在两个2族金属之间含有同金属键的化合物可以通过还原碱土卤化物R-M-X来制备（R =大体积的烷基、芳基、硅、氨基、硫代酸；M = be、Mg、Ca、Sr或Ba； X = Cl、Br或I）。此外，金属羰基或羰基酸盐与R-M-X反应或与R-M-X还原得到的产物反应可产生含有过渡金属到碱土键的配合物。将尝试进行一系列的化学反应，以探测含有第二族原子的金属-金属键的特性。有许多化合物含有两种或两种以上相互结合的金属。这些物种有各种各样的应用，包括作为催化剂和电子材料。然而，没有一种分子能很好地表征碱土金属，如铍、镁、钙、锶或钡与另一种金属结合。在这个项目中，将设计制备这种物质的方法，并探索金属-金属键的化学性质。可以预见，它最终会被用作先进材料的前体。

9409446 Ruhlandt-Senge Syracuse University Dr. Karin Ruhlandt-Senge, Chemistry Department, Syracuse University, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division with a Research Planning Grant to explore the preparation of compounds in which an alkaline earth is bonded to another metal. Compounds containing a homometallic bond between two group 2 metals will be prepared by reduction of an alkaline earth halide, R-M-X (R = bulky alkyl, aryl, sily, amido, thiolato; M = Be, Mg, Ca, Sr, or Ba; X = Cl, Br, or I). In addition, complexes containing a transition metal to alkaline earth bond will be produced from the reactions of metal carbonyls or carbonylates with R-M-X or with the products obtained from the reduction of R-M-X. A series of chemical reactions will be attempted in order to probe the characteristics of metal-metal bonds involving a group 2 atom. There are many compounds which contain two or more metals bonded to one another. These species have a variety of applications including as catalysts and electronic materials. However, there are no well characterized molecules in which an alkaline earth metal, i.e. beryllium, magnesium, calcium, strontium, or barium, is bonded to another metal. In this project methods will be devised for the preparation of such species and the chemical properties of the metal-metal bonds will be explored. Ultimate uses as precursors to advanced materials are foreseen.