Which C/N-ratio leads to the polymerisation of small molecules in the system C-H-N-O at very high pressures and temperatures?

哪种 C/N 比会导致 C-H-N-O 系统中的小分子在非常高的压力和温度下发生聚合？

• 批准号: 256141921
• 负责人: Dr. Nadine Schrodt
• 金额: --
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/256141921?language=en
• 关键词: ratio; leads; polymerisation; small; molecules

Chemical reactions of small low-Z molecules at very high pressures and temperatures have been of interest because of the unique and surprising chemical, physical and mechanical properties of their reaction products. Famous examples include the polymerisation of carbon dioxide, nitrogen and carbon monoxide. A literature search showed that many small molecules from the C-H-N-O system tend to polymerise at high pressures and temperatures. However, molecules from the H-N-O system do not polymerise but disproportionate or form ions. The main objective of this proposal is to determine the carbon content required for a polymerisation reaction of relatively small molecules from the H-N-O system. In order to achieve this objective I propose to perform high pressure experiments in laser or externally heated DACs with reactants from the C-H-N-O system having different C/N ratios. The chemical reactions will be induced by pressure, pressure and irradiation as well as pressure and temperature. Sub-goals of this proposal are the synthesis of new compounds from molecules with different C/N ratios, the characterisation of the reactants and reaction products as well as the determination of the structures of the crystalline or non-crystalline reaction products by X-ray diffraction, spectroscopic techniques and modelling.

低Z值小分子在很高的压力和温度下的化学反应一直是人们感兴趣的问题，因为它们的反应产物具有独特的和令人惊讶的化学、物理和机械性质。著名的例子包括二氧化碳、氮气和一氧化碳的聚合。文献检索表明，C-H-N-O体系中的许多小分子往往在高压和温度下聚合。然而，来自H-N-O体系的分子不聚合，而是不成比例或形成离子。这项建议的主要目标是确定H-N-O体系中相对较小的分子聚合反应所需的碳含量。为了实现这一目标，我建议在激光或外部加热的DAC中进行高压实验，使用来自具有不同C/N比的C-H-N-O系统的反应物。压力、压力和辐射以及压力和温度都会引起化学反应。这项建议的次要目标是从具有不同C/N比的分子合成新化合物、反应物和反应产物的表征以及通过X射线衍射、光谱技术和模型确定结晶或非结晶反应产物的结构。