Falaise Clément, Khlifi Soumaya, Bauduin Pierre, Schmid Philipp, Shepard William, Ivanov Anton A, Sokolov Maxim N, Shestopalov Michael A, Abramov Pavel A, Cordier Stéphane, Marrot Jérôme, Haouas Mohamed, Cadot Emmanuel
Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France.
ICSM, CEA, CNRS, ENSCM, Université Montpellier, 34199, Marcoule, France.
Angew Chem Int Ed Engl. 2021 Jun 14;60(25):14146-14153. doi: 10.1002/anie.202102507. Epub 2021 Mar 31.
Herein, we show how the chaotropic effect arising from reduced molybdate ions in acidified aqueous solution is able to amplify drastically weak supramolecular interactions. Time-resolved Small Angle X-ray Scattering (SAXS) analysis suggests that molybdenum-blue oligomeric species form huge aggregates in the presence of γ-cyclodextrin (γ-CD) which results in the fast formation of nanoscopic {Mo }-based host-guest species, while X-ray diffraction analysis reveals that the ending-point of the scenario results in an unprecedented three-component well-ordered core-shell-like motif. A similar arrangement was found by using preformed hexarhenium chalcogenide-type cluster [Re Te (CN) ] as exogenous guest. This seminal work brings better understanding of the self-assembly processes in general and gives new opportunities for practical applications in the design of complex multicomponent materials via the simplicity of the non-covalent chemistry.
在此，我们展示了酸化水溶液中钼酸根离子减少所产生的离液序列高的效应如何能够极大地增强微弱的超分子相互作用。时间分辨小角X射线散射（SAXS）分析表明，钼蓝低聚物种在γ-环糊精（γ-CD）存在下形成巨大聚集体，这导致基于{Mo }的纳米级主客体物种快速形成，而X射线衍射分析表明该过程的终点产生了前所未有的三组分有序核壳状基序。通过使用预先形成的六铼硫族化物型簇[Re Te (CN) ]作为外源客体也发现了类似的排列。这项开创性工作总体上更好地理解了自组装过程，并通过非共价化学的简单性为复杂多组分材料设计的实际应用提供了新机会。
