Chemistry of inorganic uranium compounds in liquid ammonia

液氨中无机铀化合物的化学

• 批准号: 437420997
• 负责人: Professor Dr. Florian Kraus
• 金额: --
• 依托单位: Fachgebiet Anorganische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/437420997?language=en
• 关键词: Chemistry; inorganic; uranium; compounds; liquid

Reactions of uranium compounds in ammonia are to be investigated in an exploratory way. For the currently known binary U halides we have established facile synthesis routes so that know we would like to synthesize the known, and hopefully also new, ternary uranium halides of the alkali and alkaline earth metals. Then, their chemistry in ammonia is to be investigated. Oxidation and reduction agents are to be established for liquid ammonia in order to allow for redox reactions with dissolved uranium compounds. Ag(I) and Au(I), as well as the metals that dissolve under ambient pressure in liquid ammonia, will be used. Alkali metal amides and ammonium compounds will provide for the access to the ammonobasic and ammonoacidic regime, respectively, to investigate the impact upon ammonolysis reactions. The synthesis of uranium pseudohalides is to be investigated. The uranyl(V) ion, UO2+, seems to be more stable in NH3 solution than in the aqueous system. Targeted accesses towards this species are to be established. The electrochemic synthesis of uranium metal or uranium nitride from liquid ammonia is to be investigated.

铀化合物在氨中的反应是探索性的。对于目前已知的二元铀卤化物，我们已经建立了简易的合成路线，以便知道我们想合成已知的，也希望是新的，碱金属和碱土金属的三元铀卤化物。然后，将研究它们在氨中的化学性质。将为液氨建立氧化剂和还原剂，以允许与溶解的铀化合物进行氧化还原反应。将使用Ag（I）和Au（I）以及在环境压力下溶解于液氨中的金属。碱金属酰胺和铵化合物将分别提供氨溴化铵和氨酸体系，以研究对氨解反应的影响。拟卤化铀的合成有待研究。铀酰离子UO~（2+）在NH_3溶液中比在水溶液中稳定。将建立针对该物种的目标访问。本文研究了从液氨中电化学合成金属铀或氮化铀的方法。