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Título: | Weaving of organic threads into a crystalline covalent organic framework |
Autor: | Liu, Yuzhong; Ma, Yanhang; Zhao, Yingbo; Sun, Xixi; Gándara Barragán, Felipe CSIC ORCID ; Furukawa, Hiroyasu; Liu, Zheng; Zhu, Hanyu; Zhu, Chenhui; Suenaga, Kazutomo; Oleynikov, Peter; Alshammari, Ahmad S.; Zhang, Xiang; Terasaki, Osamu; Yaghi, Omar M. | Fecha de publicación: | 21-ene-2016 | Editor: | American Association for the Advancement of Science | Citación: | Science 351 (6271): 365-369 (2016) | Resumen: | A three-dimensional covalent organic framework (COF-505) constructed from helical organic threads, designed to be mutually weaving at regular intervals, has been synthesized by imine condensation reactions of aldehyde functionalized copper(I)-bisphenanthroline tetrafluoroborate, Cu(PDB)(BF4), and benzidine (BZ).The copper centers are topologically independent of the weaving within the COF structure and serve as templates for bringing the threads into a woven pattern rather than the more commonly observed parallel arrangement. The copper(I) ions can be reversibly removed and added without loss of the COF structure, for which a tenfold increase in elasticity accompanies its demetalation. The threads in COF-505 have many degrees of freedom for enormous deviations to take place between them, throughout the material, without undoing the weaving of the overall structure. | Versión del editor: | http://doi.org/10.1126/science.aad4011 | URI: | http://hdl.handle.net/10261/187005 | DOI: | 10.1126/science.aad4011 | Identificadores: | doi: 10.1126/science.aad4011 e-issn: 1095-9203 issn: 0036-8075 |
Aparece en las colecciones: | (ICMM) Artículos |
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