在寻求更好的动因化联体时:发现它们的有效策略
Henk H Dam1, Hans Beijleveld, David N Reinhoudt
1Laboratory of Supramolecular Chemistry and Technology, Mesa+ Research Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
Journal of the American Chemical Society
|April 2, 2008
概括
一种新的选方法有效地发现使用放射性和组合化学的新小的化物 (MA) 配体. 这种方法确定了高效的Am(3+) 结合酶联体,其性能优于现有的.
科学领域:
- 放射化学和核化学的研究.
- 有机和药用化学 有机和药用化学
- 分析化学 分析化学
背景情况:
- 在核废物管理和再处理方面,开发小活性化物 (MAs) 的选择性配体至关重要.
- 现有的联结体发现方法往往耗时且缺乏效率.
- 轻微的动因化物复合需要具有特定多位协调性质的配体.
研究的目的:
- 开发和验证一种新型,高效的选方法,用于发现新的小素 (MA) 配体.
- 识别能够高效复合Am(3+) 的新型多联体.
- 为了证明结合"茶包"分池组合化学与基于放射性的选的实用性.
主要方法:
- 利用"茶包"分割池组合化学合成在三基平台上固定的多种联体库.
- 开发了一种基于复杂离子 (Am(3+)) 固有放射性的选方法,用于快速识别有效的配体.
- 在不同的条件下 (酸度,盐度,Eu3+存在) 采用竞争性提取实验来评估配体性能.
主要成果:
- 一个包含四个已知的Am(3+) 化组 (CMPO,PICO,DGA,MPMA) 的模型库成功选,验证了该方法.
- 对较大的图书馆 (9个和72个成员) 的选导致发现了两种含有胺和酸部分的新型多坐标联结体.
- 新发现的配体,A2B1C1D10和A2B1C1D11,与固定的三CMPO配体相比,显示出更高的Am(3+) 复合效率.
结论:
- "茶包"组合化学与基于放射性的选相结合,是发现新型MA配体的高效和敏感方法.
- 鉴定到的配体代表了一种新的化剂类别,在核燃料循环和废物管理中具有很大的应用潜力.
- 这种方法允许直接比较提取效率和竞争性选多个核素.
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