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New Actinide Ligand Multiple Bonds Supported by Triamidoamine Ligands

三酰氨基胺配体支持的新锕系配体多重键

基本信息

批准号：
2480812
负责人：
金额：
--
依托单位：
University of Manchester
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2020
资助国家：
英国
起止时间：
2020 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2480812
关键词：
New Actinide Ligand Multiple Bonds

项目摘要

Over the past decade we have found that triamidoamine ligands are the ideal ancillaries with which to support novel actinide-ligand linkages, and in particular multiple bonds that inherently exhibit covalency, making them exemplars to probe. However, there are many targets still to be realised and this PhD studentship targets an integrated sub-set. Through synthetic innovation we will: (i) target new actinide-element double bond linkages using electronic buffers to offset destabilising charge build-up that can make such linkages unstable; (ii) target new actinide-element triple bond linkages using modified ancillary ligands; (iii) probe the covalency of existing and new actinide-ligand multiple bonds using pulsed EPR using the UK National EPSRC EPR Facility; (iv) examine existing and new actinide-ligand multiple bonds using ligand K-edge and metal M-edge XANES and RIXS techniques at national facilities to further probe the covalency of these linkages from a complementary perspective. This project thus involves organic and inorganic synthetic chemistry, and the use of advanced structural, spectroscopic, magnetic, and computational characterisation techniques. Further, the student will be trained in the safe handling of radiochemicals and highly sensitive compounds, developing novel synthetic approaches, managing a complex portfolio of characterisation methods, and transferrable skills. This project will address basic questions about the fundamental properties of actinide elements and provide a early career researcher trained in radiochemistry. This project is directly relevant to the EPSRC chemical structure, co-ordination chemistry, chemical synthetic methodology, and magnetism/magnetic phenomena areas.

在过去的十年中，我们发现三胺胺配体是支持新型锕系-配体键的理想辅助剂，特别是具有固有共价的多键，使其成为探索的范例。然而，仍有许多目标有待实现，而这个博士研究生的目标是一个完整的子集。通过合成创新，我们将：(i)利用电子缓冲器来抵消可能使这种键不稳定的不稳定电荷积聚，以新的锕系元素双键键为目标；（ii）利用修饰的辅助配体靶向新的锕-元素三键；（iii）利用英国国家EPSRC EPR设施，利用脉冲EPR探测现有的和新的锕系-配体多键的共价；（iv）在国家设施中使用配体k边和金属m边XANES和RIXS技术检查现有和新的锕系元素-配体多键，从互补的角度进一步探索这些键的共价。因此，该项目涉及有机和无机合成化学，并使用先进的结构、光谱、磁性和计算表征技术。此外，学生将接受安全处理放射性化学品和高度敏感化合物的培训，开发新的合成方法，管理复杂的表征方法组合，以及可转移的技能。该项目将解决有关锕系元素基本性质的基本问题，并提供放射化学培训的早期职业研究人员。该项目与EPSRC化学结构、配位化学、化学合成方法和磁性/磁性现象领域直接相关。