Metal-Metal Bonded Halides and Related Materials

本研究的主要目标是：1)在早期过渡金属的富金属卤化物和硫族化物中合成新型材料；2)对新材料进行物理表征。提出的研究将以一组独特的化合物为特征，其中金属团簇和凝聚团簇相由强结合的间隙元素稳定。星团宿主包括Sc、Y、镧系元素、Zr和Hf；卤化物是Cl、Br和l；硫属化合物S和Se。此外，我们还将研究中心锆簇的溶液化学，以了解它们的连接反应和生成新固体材料的途径。将定义感兴趣的相的物理性质。重点将放在键合的性质和提供异金属阵列的无限链结构上。

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.