Fluorine Chemistry at High Pressures

高压下的氟化学

• 批准号: 387623064
• 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: Reinhart Koselleck Projects
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/387623064?language=en
• 关键词: Fluorine; Chemistry; Pressures

Fluorine is the most electronegative element and exhibits unique and outstanding oxidizing properties, which define a lot of its (possible) applications. However, very little is known about fluorine reactions at extreme temperature and pressure conditions (> 400 °C, > 400 bar up to approximately 4000 bar). This project is aimed towards the investigation of how fluorine and fluorine-based oxidizers, such as UF6 or ClF3, behave and react towards compounds or various elements at such high pressures and temperatures. The bold ideas to be tested include the capability of cesium to act as a p-element resulting in cesium oxidation states of more than +1; the formation of polyfluoride anions such as [F3]– and [F5]–, under these conditions; the synthesis of bulk compounds of Hg(IV), Cu(IV), Ag(V), Ir(VII), Os(VIII), Cr(VI); and more. As a side project, the chemistry of UF6, which is transported world-wide in special containers, will be tested against the durability of these container materials towards. Since the behavior of these construction materials towards UF6 in a fire (at temperatures above 400 °C) are completely unknown these interactions are worth investigating for academic andsafety reasons.

氟是电负性最强的元素，具有独特而突出的氧化性能，这决定了它的许多(可能)应用。然而，人们对极端温度和压力条件下的氟反应知之甚少(&gt；400℃，&gt；400 bar至约4000 bar)。该项目旨在研究氟和氟基氧化剂，如UF6或ClF3，在如此高的压力和温度下如何对化合物或各种元素起作用和反应。将要测试的大胆想法包括：铯作为p元素的能力，导致铯的氧化态超过+1；在这些条件下形成多氟阴离子，如[F3]-和[F5]-；合成汞(IV)、铜(IV)、银(V)、Ir(Vii)、Os(Viii)、Cr(VI)等大宗化合物；以及更多。作为一个附带项目，用特殊容器向世界各地运输的UF6的化学成分将与这些容器材料的耐久性进行对比测试。由于这些建筑材料在火灾中(在400°C以上)对UF6的行为完全未知，因此出于学术和安全原因，这些相互作用值得研究。