Self-assembly of carboxylic substituted PTM radicals: From weak ferromagnetic interactions to robust porous magnets
Self-assembly of carboxylic substituted PTM radicals: From weak ferromagnetic interactions to robust porous magnets
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DOI：
10.1016/j.poly.2006.09.065
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发表时间：
2007-06-15
期刊：
影响因子：
2.6
通讯作者：
Veciana, Jaume
中科院分区：
文献类型：
--
作者：
Roques, Nans;Maspoch, Daniel;Veciana, Jaume
报告了过去六年来我们小组在使用羧基功能化的多氯三苯甲基自由基(PTM)获得纯有机/分子磁性材料方面所开展的工作的概述。从单羧基PTM的开创性工作(第2节)，对于确定这些分子形成分子间氢键的能力和通过所产生的超分子基序介导的分子间相互作用的性质，我们将转移到带有两个和三个羧基的PTM自由基的自组装(第三节)。在这些情况下，顺磁单元的自组装产生了坚固和多孔的磁性结构，在某些情况下将磁性有序与最新的显著特征联系在一起。综述的最后部分将介绍利用六个羧基官能化的PTM自由基来增加纯有机PTM材料的结构和磁性的想法所获得的最新结果(第4节)。结语部分(第5节)将介绍这一研究方向的新趋势和挑战，涉及新的PTM自由基的设计和合成，以及基于PTM的传感器或多功能材料的获得。(C)2006爱思唯尔有限公司。保留所有权利。
An overview of the work that have been developed over the last six years in our group on the use of polychlorotriphenylmetyl radicals (PTM) functionalized by carboxylic groups to access to purely organic/molecular magnetic materials is reported. From the seminal work on the monocarboxylic PTM (Section 2), of great importance to determine both the ability of these molecules to form intermolecular H-bonds and the nature of the intermolecular interactions mediated through the resulting supramolecular motifs, we will move to the self-assembly of PTM radicals functionalized with two and three carboxylic groups (Section 3). In those cases, the self-assembly of the paramagnetic units yield robust and porous magnetic structures, associating in some cases magnetic ordering to the latest remarkable characteristics. The last part of the review will present the latest results obtained with the idea to increase both the structural and magnetic dimensionality in purely organic PTM-based materials using a PTM radical functionalized by six carboxylic groups (Section 4). New trends and challenges for this research line, concerning the design and synthesis of new PTM radicals, as well as the obtaining of PTM based sensors or multifunctional materials will be presented in the concluding section (Section 5). (c) 2006 Elsevier Ltd. All rights reserved.