Synthesis and Characterization of Ternary Niobium, Tantalum and Zirconium Metal-Rich Materials

本研究的目标是探索性地合成和表征富金属的锆铌和钽的硫系化合物。元素和二元前驱体的间接反应是在适宜的温度下合成三元化合物，比直接法合成的反应要少。几种合成目标材料，特别是具有ıTa5TaS5的化合物！探索了使用助熔剂合成来降低反应温度，同时仍可产生结晶产品。提出了利用金属卤化物簇前驱体合成硫系化合物的计划。探索了Ta_2Se和Ta_(1.4)Nb_(0.6)S的新插层化学。这些探索性合成/表征的动机是开发具有特殊结构的新化学或新材料，具有新的和有趣的性质。

The goal of this research is to conduct exploratory synthesis and physical characterization of metal-rich chalcogenides of zirconium, niobium, and tantalum. Indirect reactions of elemental and binary precursors are used to synthesize ternary compounds at convenient temperatures, less than those obtained by direct methods. Several synthetic target materials, with a particular focus on compounds having the ıTa5TaS5! chain, are explored using flux synthesis to lower reaction temperatures while still yielding crystalline products. Plans are presented for chalcogenide synthesis using metal-halide-cluster precursors. Also, new intercalation chemistry involving Ta2Se and Ta1.4Nb0.6S are explored. The motivations for these exploratory synthesis/characterization are to develop new chemistry or new materials with unusual structures having new and interesting properties.