Metal-Metal Bonded Halides and Related Materials

本研究的主要目标是：1)合成早期过渡金属中的富金属卤化物和硫系化合物中的新材料；2)对新材料进行物理表征。拟议的研究将以一组独特的化合物为特色，其中金属团簇和凝聚团簇相由强结合的间隙元素稳定。簇主元素包括Sc、Y、镧系元素、Zr和Hf；卤素元素为Cl、Br和L；硫族元素S和Se。此外，还将研究中心锆团簇的溶液化学，以了解它们的连接反应和获得新固体材料的途径。将定义感兴趣的相的物理性质。重点将放在键的性质和提供非金属阵列的无限链状结构上。

The primary objectives of this research are: 1) to synthesize new and novel materials among the metal-rich halides and chalcogenides of the early transition metals, and 2) to characterize the new materials physically. The proposed studies will feature a unique group of compounds in which metal cluster and condensed cluster phases are stabilized by strongly bound, interstitial elements. The cluster hosts will include Sc, Y, the lanthanides, Zr, and Hf; the halides will be Cl, Br, and l; the chalcogenides S and Se. Also, the solution chemistry of centered zirconium clusters will be studied to provide both an understanding of their ligation reactions and routes to new solid materials. Physical properties of the interesting phases will be defined. Emphasis will be given to the nature of bonding and to infinite chain structures which afford hetrometal arrays.