Contreras-Pereda N, Hayati P, Suárez-García S, Esrafili L, Retailleau P, Benmansour S, Novio F, Morsali A, Ruiz-Molina D
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
Department of Chemistry, Institution: Faculty of Sciences, Tarbiat Modares University, 14115-175 Tehran, Iran.
Ultrason Sonochem. 2019 Jul;55:186-195. doi: 10.1016/j.ultsonch.2019.02.014. Epub 2019 Feb 20.
Two novel cadmium-based 2D coordination polymers have been synthesized and characterized. Experimental results evidence that the best delamination processes occurs when weak interactions dominate the cohesion between layers and solvent molecules are occluded within the crystalline network. In this case, the delamination of the crystals occurs spontaneously in water. On top of that, and thanks to the high stability of the resulting (flake) colloidal dispersions, we have completed a detailed study of the sonication assisted delamination impact by: I) comparison of two different sonication approaches (bath vs. tip sonication) and II) optimization of final flake morphology and yield by controlling solvent and sonication time. Our results definitely pave the way for the fabrication and implementation of 2D coordination polymers using ultrasound.
两种新型镉基二维配位聚合物已被合成并表征。实验结果表明，当弱相互作用主导层间内聚力且溶剂分子被包埋在晶体网络中时，最佳的分层过程会发生。在这种情况下，晶体在水中会自发分层。除此之外，由于所得（片状）胶体分散体具有高稳定性，我们通过以下方式完成了对超声辅助分层影响的详细研究：I）比较两种不同的超声处理方法（浴式超声与尖端超声）；II）通过控制溶剂和超声处理时间来优化最终片状形态和产率。我们的结果无疑为利用超声制备和应用二维配位聚合物铺平了道路。
