Chemistry of Beryllium in liquid Ammonia and the Usage of Fluoride Ion Acceptors for the Synthesis of Nitrogen Containing Compounds

铍在液氨中的化学性质以及氟离子受体在含氮化合物合成中的应用

基本信息

批准号：
189246818
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 2016-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/189246818?language=en
关键词：
Chemistry Beryllium liquid Ammonia Usage

项目摘要

In this proposal we would like to explore the basic chemistry of beryllium in liquid ammonia solution.Additionally, the reaction of fluoride ion acceptors, like Be2+, with metal fluorides should open an access to mixed anionic compounds containing N and F, and finally lead to nitrides.These nitrogen and fluorine containing classes of compounds are - with few exceptions - unknown. However, they should feature interesting and commercially usable magnetic, optic, or even superconducting properties as the oxides do, which are most often a lot easier to synthesize.Therfore, the chemical reactions of beryllium compounds with ammonia, hydrazine, amides, imides and nitrides are to be explored in solid state reactions as well as in liquid ammonia solution. Beryllium amide, imide and nitride is to be reacted with various metal fluorides.Our previous works have been extremely successful. We have shown that the beryllium cation can be used as a fluoride ion acceptor in liquid ammonia. This cleared the way for a continuative, rich beryllium chemistry in liquid ammonia: The tetraammine beryllium cation was structurally characterized for the first time, and its hydrolysis products in liquid ammonia were elucidated.Diammine difluorido beryllium(II) acts as a strong fluoride ion acceptor as it is able to abtract a fluoride ion from the almost insoluble metal tetrafluorides. This way ammine trifluorido beryllates(II) are formed.

在这项建议中，我们想探索液态氨溶液中铍的基本化学性质。从附属上，氟化物离子受体（如BE2+）与金属氟化物的反应应为含有N和F的混合阴离子化合物开放，并最终导致氮气和含量含有氮的含量。但是，它们应该像氧化物一样具有有趣且商业上可用的磁性，光学甚至超导性能，通常更容易合成。铍酰胺，酰亚胺和氮化物应与各种金属氟化物反应。我们以前的作品非常成功。我们已经表明，铍阳离子可以用作液体氨中的氟离子受体。 This cleared the way for a continuative, rich beryllium chemistry in liquid ammonia: The tetraammine beryllium cation was structurally characterized for the first time, and its hydrolysis products in liquid ammonia were elucidated.Diammine difluorido beryllium(II) acts as a strong fluoride ion acceptor as it is able to abtract a fluoride ion from the almost insoluble metal四氟化物。这样，形成了Ammine Trifluorido Beryllates（II）。