Introduction of Nitrogen into uranium and thorium halides: Reactions with liquid ammonia, amides, imides, nitrides, and azides

将氮引入铀和钍的卤化物中：与液氨、酰胺、酰亚胺、氮化物和酸的反应

基本信息

批准号：
189244078
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
财政年份：
2010
资助国家：
德国
起止时间：
2009-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/189244078?language=en
关键词：
Introduction Nitrogen into uranium thorium

项目摘要

The chemistry of uranium and thorium is well known - in sections dealing for nuclear purposes such as isolation of the elements, isotope separation, or workup of nuclear fuels. Besides these nuclear topics the knowledge is scarce.With our project we would like to stay away from such nuclear purposes and focus on the basic chemistry of uranium and thorium. The chemical reactions of uranium and thorium halides, with a special emphasis on those of the fluorides, are to be explored further. Our main interest is the synthesis of fluorine and nitrogen containing compounds like fluoride ammines, but also mixed-anionic compounds like fluoride amides, imides, and the respective nitrides. Nitrogen is to be introduced using ammonia, hydrazine, amides, imides, nitrides, and azides using solid state techniques as well as solution techniques in liquid ammonia solution. To the best of our knowledge such compounds are - except for a few examples - unknown. However, as they should be structurally related to oxides, the compounds should feature interesting and similar usable magnetic, optic, and electronic properties. In recent years mixed-anionic compounds have become more important, as for example superconducting fluoride oxides have been discovered.Nitrides are industrially used as hard materials, high temperature resistant substances, but also as light emitters in LEDs. Usually nitrides are synthesized at high temperatures and/or pressures. In our project we would like to develop a low temperature route to nitrides based on successive ammonolysis of halides in liquid ammonia.Our preliminary work during the first proposal was very successful: Besides a couple of novel compounds, the engagement with uranium, thorium, and fluorine chemistry allowed us to spot and settle an almost 200 year old dispute: Only with the knowledge gained in the first proposal we could unambiguosly proof the existence of elemental fluorine in nature.

铀和or的化学是为了核目的而众所周知的，例如分离元素，同位素分离或核燃料的工作。除了这些核主题外，知识是稀缺的。我们希望远离这种核用途，并专注于铀和th的基本化学。铀和卤化卤化物的化学反应将进一步探索，并特别强调氟化物的化学反应。我们的主要兴趣是合成含有氟胺等化合物的氟和氮的合成，以及氟化物酰胺，酰亚基和各自的氮化物等混合植物化合物。氮将使用氨，酰胺，酰胺，氮化物和叠氮化物以及固态技术以及液态氨溶液中的溶液技术引入氮。据我们所知，这些化合物是 - 除了一些例子外，未知。但是，由于它们应与氧化物结构相关，因此这些化合物应具有有趣且相似的可用磁性，光学和电子特性。近年来，混合植物化合物变得越来越重要，因为已经发现了超导氟化物氧化物。硝酸盐在工业上用作硬材料，高温抗性物质，但也是LED中的光发射器。通常在高温和/或压力下合成硝酸盐。在我们的项目中，我们希望根据液态氨中的连续氨基解析卤化物开发低温途径。我们在第一个提案期间的初步工作非常成功：除了几种新颖的化合物外，与铀，thor和氟化学的互动还使我们能够发现并获得了近200个元素的质疑：我们只能在我们的第一个元素上进行证明：自然界中的氟。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Recent advances in the chemistry of uranium halides in anhydrous ammonia

无水氨中卤化铀化学研究进展

DOI：
10.1515/zkri-2018-2066
发表时间：
2018
期刊：
Zeitschrift für Kristallographie - Crystalline Materials
影响因子：
0
作者：
S. S. Rudel;S. A. Baer;P. Woidy;T. G. Müller;H.-L. Deubner;B. Scheibe;F. Kraus
通讯作者：
F. Kraus

A 1D Coordination Polymer of UF5 with HCN as a Ligand.

UF5以HCN为配体的一维配位聚合物